diff --git a/accessible/ipc/extension/android/DocAccessiblePlatformExtChild.h b/accessible/ipc/extension/android/DocAccessiblePlatformExtChild.h
index b4bc0ce7abdd..cb9958a0204b 100644
--- a/accessible/ipc/extension/android/DocAccessiblePlatformExtChild.h
+++ b/accessible/ipc/extension/android/DocAccessiblePlatformExtChild.h
@@ -41,4 +41,4 @@ class DocAccessiblePlatformExtChild : public PDocAccessiblePlatformExtChild {
 }  // namespace a11y
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/accessible/ipc/extension/android/DocAccessiblePlatformExtParent.h b/accessible/ipc/extension/android/DocAccessiblePlatformExtParent.h
index b9278599bbec..044227cb0eec 100644
--- a/accessible/ipc/extension/android/DocAccessiblePlatformExtParent.h
+++ b/accessible/ipc/extension/android/DocAccessiblePlatformExtParent.h
@@ -19,4 +19,4 @@ class DocAccessiblePlatformExtParent : public PDocAccessiblePlatformExtParent {
 }  // namespace a11y
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/accessible/ipc/extension/other/DocAccessiblePlatformExtChild.h b/accessible/ipc/extension/other/DocAccessiblePlatformExtChild.h
index 6a6542bf7174..6773457e50f9 100644
--- a/accessible/ipc/extension/other/DocAccessiblePlatformExtChild.h
+++ b/accessible/ipc/extension/other/DocAccessiblePlatformExtChild.h
@@ -17,4 +17,4 @@ class DocAccessiblePlatformExtChild : public PDocAccessiblePlatformExtChild {};
 }  // namespace a11y
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/accessible/ipc/extension/other/DocAccessiblePlatformExtParent.h b/accessible/ipc/extension/other/DocAccessiblePlatformExtParent.h
index e2e1cd907f8b..d0054e5e2087 100644
--- a/accessible/ipc/extension/other/DocAccessiblePlatformExtParent.h
+++ b/accessible/ipc/extension/other/DocAccessiblePlatformExtParent.h
@@ -15,4 +15,4 @@ class DocAccessiblePlatformExtParent : public PDocAccessiblePlatformExtParent {
 }  // namespace a11y
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/browser/base/content/aboutTabCrashed.css b/browser/base/content/aboutTabCrashed.css
index 1d7663c9d209..de0eabe8bdd3 100644
--- a/browser/base/content/aboutTabCrashed.css
+++ b/browser/base/content/aboutTabCrashed.css
@@ -8,4 +8,4 @@ html:not(.crashDumpAvailable) #reportBox,
 .container[multiple="false"] > .offers > #offerHelpMessageMultiple,
 .container[multiple="false"] > .button-container > #restoreAll {
   display: none;
-}
+}
\ No newline at end of file
diff --git a/browser/base/content/test/contextMenu/browser_contextmenu_loadblobinnewtab.html b/browser/base/content/test/contextMenu/browser_contextmenu_loadblobinnewtab.html
index ca96fcfaa015..37e5af5b22b1 100644
--- a/browser/base/content/test/contextMenu/browser_contextmenu_loadblobinnewtab.html
+++ b/browser/base/content/test/contextMenu/browser_contextmenu_loadblobinnewtab.html
@@ -53,4 +53,4 @@
 
 </body>
 
-</html>
+</html>
\ No newline at end of file
diff --git a/browser/base/content/test/fullscreen/open_and_focus_helper.html b/browser/base/content/test/fullscreen/open_and_focus_helper.html
index 088e27896507..7e8000391ab2 100644
--- a/browser/base/content/test/fullscreen/open_and_focus_helper.html
+++ b/browser/base/content/test/fullscreen/open_and_focus_helper.html
@@ -41,4 +41,4 @@
     window.addEventListener('message', window.onMessage);
   </script>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/browser/base/content/test/pageinfo/iframes.html b/browser/base/content/test/pageinfo/iframes.html
index b29680cbd160..13b61b8137e0 100644
--- a/browser/base/content/test/pageinfo/iframes.html
+++ b/browser/base/content/test/pageinfo/iframes.html
@@ -5,4 +5,4 @@
   <body style='background-image:url(about:logo?a);'>
     <iframe width="420" height="345" src="moz.png"></iframe>
   </body>
-</html>");
+</html>");
\ No newline at end of file
diff --git a/browser/base/content/test/static/bug1262648_string_with_newlines.dtd b/browser/base/content/test/static/bug1262648_string_with_newlines.dtd
index 86cbefa5bdcb..308072c4e055 100644
--- a/browser/base/content/test/static/bug1262648_string_with_newlines.dtd
+++ b/browser/base/content/test/static/bug1262648_string_with_newlines.dtd
@@ -1,3 +1,3 @@
 <!ENTITY foo.bar    "This string
 contains
-newlines!">
+newlines!">
\ No newline at end of file
diff --git a/browser/base/content/test/tabdialogs/subdialog.xhtml b/browser/base/content/test/tabdialogs/subdialog.xhtml
index 3dfe537f470b..a13fe7af0ab6 100644
--- a/browser/base/content/test/tabdialogs/subdialog.xhtml
+++ b/browser/base/content/test/tabdialogs/subdialog.xhtml
@@ -30,4 +30,4 @@
   <button oncommand="window.close();" label="Close" />
 
 </dialog>
-</window>
+</window>
\ No newline at end of file
diff --git a/browser/base/content/test/tabs/file_anchor_elements.html b/browser/base/content/test/tabs/file_anchor_elements.html
index 99784fb9b9eb..eff8ae95f5f5 100644
--- a/browser/base/content/test/tabs/file_anchor_elements.html
+++ b/browser/base/content/test/tabs/file_anchor_elements.html
@@ -9,4 +9,4 @@
   <p contenteditable>Here is <span contenteditable="false"><a id="non-editable_a_with_href" href="http://example.com/#non-editable_a_with_href">non-editable anchor element</a></span>
   <p>Here is an <a id="a_with_name" name="a_with_name">anchor element without href</a></p>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/browser/components/originattributes/test/browser/file_thirdPartyChild.link.css b/browser/components/originattributes/test/browser/file_thirdPartyChild.link.css
index 6f8f41b4a4a4..06d6e2672ffe 100644
--- a/browser/components/originattributes/test/browser/file_thirdPartyChild.link.css
+++ b/browser/components/originattributes/test/browser/file_thirdPartyChild.link.css
@@ -1 +1 @@
-/* Dummy CSS file, used by browser_cache.js. */
+/* Dummy CSS file, used by browser_cache.js. */
\ No newline at end of file
diff --git a/browser/components/urlbar/content/interventions.ftl b/browser/components/urlbar/content/interventions.ftl
index 01f97e61d84d..f17a833a0039 100644
--- a/browser/components/urlbar/content/interventions.ftl
+++ b/browser/components/urlbar/content/interventions.ftl
@@ -37,4 +37,4 @@ intervention-update-restart-confirm = Restart to Update
 intervention-update-web = Get the latest { -brand-short-name } browser.
 intervention-update-web-confirm = Download Now
 
-##
+##
\ No newline at end of file
diff --git a/build/clang-plugin/tests/TestLoadLibraryUsage.cpp b/build/clang-plugin/tests/TestLoadLibraryUsage.cpp
index 319c9d6b2aed..becab7c655c8 100644
--- a/build/clang-plugin/tests/TestLoadLibraryUsage.cpp
+++ b/build/clang-plugin/tests/TestLoadLibraryUsage.cpp
@@ -17,4 +17,4 @@ void Func() {
   auto h9 = LoadLibraryEx(nullptr, nullptr, 0); // expected-error {{Usage of ASCII file functions (such as LoadLibraryExA) is forbidden.}}
   auto h10 = LoadLibraryEx("C:\\Some\\Path", nullptr, 0);
 #endif
-}
+}
\ No newline at end of file
diff --git a/build/clang-plugin/tests/TestNoPrincipalGetUri.cpp b/build/clang-plugin/tests/TestNoPrincipalGetUri.cpp
index 6442778ef16c..a82b845a4a4e 100644
--- a/build/clang-plugin/tests/TestNoPrincipalGetUri.cpp
+++ b/build/clang-plugin/tests/TestNoPrincipalGetUri.cpp
@@ -28,4 +28,4 @@ void f() {
   SomePrincipal *d = new SomePrincipal();
   d->GetURI(0);
 
-}
+}
\ No newline at end of file
diff --git a/config/external/rlbox_lucet_sandbox/rlbox_lucet_thread_locals.cpp b/config/external/rlbox_lucet_sandbox/rlbox_lucet_thread_locals.cpp
index 0217074f6bb4..0104055c6315 100644
--- a/config/external/rlbox_lucet_sandbox/rlbox_lucet_thread_locals.cpp
+++ b/config/external/rlbox_lucet_sandbox/rlbox_lucet_thread_locals.cpp
@@ -17,4 +17,4 @@
 // MingW bug is fixed.
 RLBOX_LUCET_SANDBOX_STATIC_VARIABLES();
 
-#endif
+#endif
\ No newline at end of file
diff --git a/devtools/client/aboutdebugging/src/components/connect/ConnectSection.css b/devtools/client/aboutdebugging/src/components/connect/ConnectSection.css
index 0714c4d48aac..06e77b911291 100644
--- a/devtools/client/aboutdebugging/src/components/connect/ConnectSection.css
+++ b/devtools/client/aboutdebugging/src/components/connect/ConnectSection.css
@@ -44,4 +44,4 @@
 
 .connect-section__extra {
   border-block-start: 1px solid var(--card-separator-color);
-}
+}
\ No newline at end of file
diff --git a/devtools/client/aboutdebugging/test/browser/test-tab-favicons.html b/devtools/client/aboutdebugging/test/browser/test-tab-favicons.html
index 35954f67a15e..f878ab6bb7b1 100644
--- a/devtools/client/aboutdebugging/test/browser/test-tab-favicons.html
+++ b/devtools/client/aboutdebugging/test/browser/test-tab-favicons.html
@@ -5,4 +5,4 @@
     <link rel="icon" type="image/png" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAATklEQVRYhe3SIQ4AIBADwf7/04elBAtrVlSduGnSTDJ7cuT1PQJwwO+Hl7sAGAA07gjAAfgIBeAAoHFHAA7ARygABwCNOwJwAD5CATRgAYXh+kypw86nAAAAAElFTkSuQmCC">
   <head>
   <body>Some page with a favicon</body>
-</html>
+</html>
\ No newline at end of file
diff --git a/devtools/client/framework/browser-toolbox/test/doc_browser_toolbox_fission_contentframe_inspector_page.html b/devtools/client/framework/browser-toolbox/test/doc_browser_toolbox_fission_contentframe_inspector_page.html
index 67ee09ceed18..0578cc16f758 100644
--- a/devtools/client/framework/browser-toolbox/test/doc_browser_toolbox_fission_contentframe_inspector_page.html
+++ b/devtools/client/framework/browser-toolbox/test/doc_browser_toolbox_fission_contentframe_inspector_page.html
@@ -13,4 +13,4 @@
     This ensures this frame will be a remote frame when fission is enabled. -->
     <iframe src="http://example.org/browser/devtools/client/framework/browser-toolbox/test/doc_browser_toolbox_fission_contentframe_inspector_frame.html"></iframe>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/devtools/client/inspector/computed/test/doc_sourcemaps.css b/devtools/client/inspector/computed/test/doc_sourcemaps.css
index f62fbda21e6a..a9b437a4089c 100644
--- a/devtools/client/inspector/computed/test/doc_sourcemaps.css
+++ b/devtools/client/inspector/computed/test/doc_sourcemaps.css
@@ -4,4 +4,4 @@ div {
 span {
   background-color: #EEE; }
 
-/*# sourceMappingURL=doc_sourcemaps.css.map */
+/*# sourceMappingURL=doc_sourcemaps.css.map */
\ No newline at end of file
diff --git a/devtools/client/inspector/shared/test/doc_content_stylesheet.xhtml b/devtools/client/inspector/shared/test/doc_content_stylesheet.xhtml
index 36a8e3e86351..efd53815d386 100644
--- a/devtools/client/inspector/shared/test/doc_content_stylesheet.xhtml
+++ b/devtools/client/inspector/shared/test/doc_content_stylesheet.xhtml
@@ -6,4 +6,4 @@
 <window id="testwindow" xmlns:html="http://www.w3.org/1999/xhtml"
         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   <label id="target" value="Simple XUL document" />
-</window>
+</window>
\ No newline at end of file
diff --git a/devtools/client/jsonview/css/search-box.css b/devtools/client/jsonview/css/search-box.css
index db35b9e81ea0..de04a2d51b27 100644
--- a/devtools/client/jsonview/css/search-box.css
+++ b/devtools/client/jsonview/css/search-box.css
@@ -13,4 +13,4 @@
 .theme-dark .devtools-filterinput {
   background-color: rgba(24, 29, 32, 1);
   color: rgba(184, 200, 217, 1);
-}
+}
\ No newline at end of file
diff --git a/devtools/client/locales/en-US/dom.properties b/devtools/client/locales/en-US/dom.properties
index cc5e93858c3a..3c09d4e4157d 100644
--- a/devtools/client/locales/en-US/dom.properties
+++ b/devtools/client/locales/en-US/dom.properties
@@ -16,4 +16,4 @@ dom.filterDOMPanel=Filter DOM Panel
 
 # LOCALIZATION NOTE (dom.refresh): A label for Refresh button in
 # DOM panel toolbar
-dom.refresh=Refresh
+dom.refresh=Refresh
\ No newline at end of file
diff --git a/devtools/client/netmonitor/src/assets/styles/StatusCode.css b/devtools/client/netmonitor/src/assets/styles/StatusCode.css
index 5b69d6f72b76..b890266fd968 100644
--- a/devtools/client/netmonitor/src/assets/styles/StatusCode.css
+++ b/devtools/client/netmonitor/src/assets/styles/StatusCode.css
@@ -97,4 +97,4 @@
 .headers-overview .summary .status[data-code^="8"],
 .headers-overview .summary .status[data-code^="9"] {
   color: var(--status-code-color-5xx);
-}
+}
\ No newline at end of file
diff --git a/devtools/client/netmonitor/test/html_csp-test-page.html b/devtools/client/netmonitor/test/html_csp-test-page.html
index fe2a42eefc8a..c86919da2904 100644
--- a/devtools/client/netmonitor/test/html_csp-test-page.html
+++ b/devtools/client/netmonitor/test/html_csp-test-page.html
@@ -14,4 +14,4 @@
 
     <script src="js_websocket-worker-test.js"></script>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/devtools/client/netmonitor/test/html_slow-requests-test-page.html b/devtools/client/netmonitor/test/html_slow-requests-test-page.html
index 93941d2705e7..77678d272a6b 100644
--- a/devtools/client/netmonitor/test/html_slow-requests-test-page.html
+++ b/devtools/client/netmonitor/test/html_slow-requests-test-page.html
@@ -12,4 +12,4 @@
          <script type="text/javascript"
            src="http://example.com/browser/devtools/client/netmonitor/test/sjs_slow-script-server.sjs"></script>
        </body>
-     </html>
+     </html>
\ No newline at end of file
diff --git a/devtools/client/responsive/test/browser/doc_toolbox_rule_view.css b/devtools/client/responsive/test/browser/doc_toolbox_rule_view.css
index 7ed528635b57..9f7ab9231bb1 100644
--- a/devtools/client/responsive/test/browser/doc_toolbox_rule_view.css
+++ b/devtools/client/responsive/test/browser/doc_toolbox_rule_view.css
@@ -7,4 +7,4 @@ div {
   div {
     width: 100px;
   }
-};
+};
\ No newline at end of file
diff --git a/devtools/client/responsive/test/browser/doc_toolbox_rule_view.html b/devtools/client/responsive/test/browser/doc_toolbox_rule_view.html
index e4a311b7ec85..d25dea6aed04 100644
--- a/devtools/client/responsive/test/browser/doc_toolbox_rule_view.html
+++ b/devtools/client/responsive/test/browser/doc_toolbox_rule_view.html
@@ -1,4 +1,4 @@
 <html>
   <link rel="stylesheet" charset="UTF-8" type="text/css" media="screen" href="doc_toolbox_rule_view.css"/>
   <div></div>
-</html>
+</html>
\ No newline at end of file
diff --git a/devtools/client/shared/components/tabs/Tabs.css b/devtools/client/shared/components/tabs/Tabs.css
index 703f81c82efb..ae9aa54709c8 100644
--- a/devtools/client/shared/components/tabs/Tabs.css
+++ b/devtools/client/shared/components/tabs/Tabs.css
@@ -112,4 +112,4 @@ div[hidetabs=true] .tabs .tabs-navigation {
   height: 100%;
   overflow-x: hidden;
   overflow-y: auto;
-}
+}
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/doc_xulpage.xhtml b/devtools/client/styleeditor/test/doc_xulpage.xhtml
index 41385afa4ad1..155be25ec29f 100644
--- a/devtools/client/styleeditor/test/doc_xulpage.xhtml
+++ b/devtools/client/styleeditor/test/doc_xulpage.xhtml
@@ -4,4 +4,4 @@
 <window xmlns:html="http://www.w3.org/1999/xhtml"
         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   <label value="Simple XUL document" />
-</window>
+</window>
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/many-media-rules-sourcemaps/index.html b/devtools/client/styleeditor/test/many-media-rules-sourcemaps/index.html
index 9734231b99a4..ee85d148b3d4 100644
--- a/devtools/client/styleeditor/test/many-media-rules-sourcemaps/index.html
+++ b/devtools/client/styleeditor/test/many-media-rules-sourcemaps/index.html
@@ -8,4 +8,4 @@
 <body>
 
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/many-media-rules-sourcemaps/sourcemap/sourcemap-css/sourcemaps.css b/devtools/client/styleeditor/test/many-media-rules-sourcemaps/sourcemap/sourcemap-css/sourcemaps.css
index edb7860289e7..4860e19e51a6 100644
--- a/devtools/client/styleeditor/test/many-media-rules-sourcemaps/sourcemap/sourcemap-css/sourcemaps.css
+++ b/devtools/client/styleeditor/test/many-media-rules-sourcemaps/sourcemap/sourcemap-css/sourcemaps.css
@@ -198,4 +198,4 @@
   div {
     color: red; } }
 
-/*# sourceMappingURL=sourcemaps.css.map */
+/*# sourceMappingURL=sourcemaps.css.map */
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/sourcemap-css/contained.css b/devtools/client/styleeditor/test/sourcemap-css/contained.css
index 3cfb80be8f7b..79572f6065b8 100644
--- a/devtools/client/styleeditor/test/sourcemap-css/contained.css
+++ b/devtools/client/styleeditor/test/sourcemap-css/contained.css
@@ -1,4 +1,4 @@
 #header {
   color: #f06; }
 
-/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiIiwic291cmNlcyI6WyJzYXNzL2NvbnRhaW5lZC5zY3NzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUVBO0VBQ0UsT0FISyIsInNvdXJjZXNDb250ZW50IjpbIiRwaW5rOiAjZjA2O1xuXG4jaGVhZGVyIHtcbiAgY29sb3I6ICRwaW5rO1xufSJdfQ==*/
+/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiIiwic291cmNlcyI6WyJzYXNzL2NvbnRhaW5lZC5zY3NzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUVBO0VBQ0UsT0FISyIsInNvdXJjZXNDb250ZW50IjpbIiRwaW5rOiAjZjA2O1xuXG4jaGVhZGVyIHtcbiAgY29sb3I6ICRwaW5rO1xufSJdfQ==*/
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/sourcemap-css/media-rules.css b/devtools/client/styleeditor/test/sourcemap-css/media-rules.css
index d4283200fdb9..fad540a96430 100644
--- a/devtools/client/styleeditor/test/sourcemap-css/media-rules.css
+++ b/devtools/client/styleeditor/test/sourcemap-css/media-rules.css
@@ -5,4 +5,4 @@
   div {
     width: 400px; } }
 
-/*# sourceMappingURL=media-rules.css.map */
+/*# sourceMappingURL=media-rules.css.map */
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/sourcemap-css/sourcemaps.css b/devtools/client/styleeditor/test/sourcemap-css/sourcemaps.css
index 923849a5c5e2..7246a9082aa1 100644
--- a/devtools/client/styleeditor/test/sourcemap-css/sourcemaps.css
+++ b/devtools/client/styleeditor/test/sourcemap-css/sourcemaps.css
@@ -4,4 +4,4 @@ div {
 span {
   background-color: #EEE; }
 
-/*# sourceMappingURL=sourcemaps.css.map */
+/*# sourceMappingURL=sourcemaps.css.map */
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/sourcemap-css/test-stylus.css b/devtools/client/styleeditor/test/sourcemap-css/test-stylus.css
index b0923ef9c173..0ec51da3b74d 100644
--- a/devtools/client/styleeditor/test/sourcemap-css/test-stylus.css
+++ b/devtools/client/styleeditor/test/sourcemap-css/test-stylus.css
@@ -4,4 +4,4 @@ div {
 span {
   background-color: #eee;
 }
-/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInRlc3Qtc3R5bHVzLnN0eWwiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBRUE7RUFDRSxPQUFPLEtBQVA7O0FBRUY7RUFDRSxrQkFBa0IsS0FBbEIiLCJmaWxlIjoidGVzdC1zdHlsdXMuY3NzIiwic291cmNlc0NvbnRlbnQiOlsicGF1bHJvdWdldHBpbmsgPSAjZjA2O1xuXG5kaXZcbiAgY29sb3I6IHBhdWxyb3VnZXRwaW5rXG5cbnNwYW5cbiAgYmFja2dyb3VuZC1jb2xvcjogI0VFRVxuIl19 */
+/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInRlc3Qtc3R5bHVzLnN0eWwiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBRUE7RUFDRSxPQUFPLEtBQVA7O0FBRUY7RUFDRSxrQkFBa0IsS0FBbEIiLCJmaWxlIjoidGVzdC1zdHlsdXMuY3NzIiwic291cmNlc0NvbnRlbnQiOlsicGF1bHJvdWdldHBpbmsgPSAjZjA2O1xuXG5kaXZcbiAgY29sb3I6IHBhdWxyb3VnZXRwaW5rXG5cbnNwYW5cbiAgYmFja2dyb3VuZC1jb2xvcjogI0VFRVxuIl19 */
\ No newline at end of file
diff --git a/devtools/client/styleeditor/test/test_private.css b/devtools/client/styleeditor/test/test_private.css
index e8f24f94a361..438954d36c9f 100644
--- a/devtools/client/styleeditor/test/test_private.css
+++ b/devtools/client/styleeditor/test/test_private.css
@@ -1,3 +1,3 @@
 body {
     background-color: red;
-}
+}
\ No newline at end of file
diff --git a/devtools/client/webconsole/test/browser/test-block-action-style.css b/devtools/client/webconsole/test/browser/test-block-action-style.css
index d224431f16c8..4717ad4b94f6 100644
--- a/devtools/client/webconsole/test/browser/test-block-action-style.css
+++ b/devtools/client/webconsole/test/browser/test-block-action-style.css
@@ -1,3 +1,3 @@
 h1 {
     color: red;
-}
+}
\ No newline at end of file
diff --git a/devtools/client/webconsole/test/browser/test-cspro.html b/devtools/client/webconsole/test/browser/test-cspro.html
index d207b0949ee9..b10d704e811d 100644
--- a/devtools/client/webconsole/test/browser/test-cspro.html
+++ b/devtools/client/webconsole/test/browser/test-cspro.html
@@ -17,4 +17,4 @@ messages.</title>
 <!-- this image allowed only be the CSP report-only header. -->
 <img src="http://some.example.com/cspro.png">
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/devtools/client/webconsole/test/browser/test-worker-promise-error.html b/devtools/client/webconsole/test/browser/test-worker-promise-error.html
index a89c89b07bbd..2cff4925a92f 100644
--- a/devtools/client/webconsole/test/browser/test-worker-promise-error.html
+++ b/devtools/client/webconsole/test/browser/test-worker-promise-error.html
@@ -41,4 +41,4 @@ context.audioWorklet.addModule(workletScriptUrl).then(() => {
 });
 </script>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/devtools/server/tests/browser/application-manifest-no-manifest.html b/devtools/server/tests/browser/application-manifest-no-manifest.html
index 5f0668aa5098..c7546d86e792 100644
--- a/devtools/server/tests/browser/application-manifest-no-manifest.html
+++ b/devtools/server/tests/browser/application-manifest-no-manifest.html
@@ -6,4 +6,4 @@
 </head>
 <body>
   <p>This page does not link to a manifest</p>
-</body>
+</body>
\ No newline at end of file
diff --git a/devtools/shared/locales/en-US/shared.properties b/devtools/shared/locales/en-US/shared.properties
index 0978450dee56..1fb1dc2307a8 100644
--- a/devtools/shared/locales/en-US/shared.properties
+++ b/devtools/shared/locales/en-US/shared.properties
@@ -3,4 +3,4 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 # LOCALIZATION NOTE (ellipsis): The ellipsis (three dots) character
-ellipsis=…
+ellipsis=…
\ No newline at end of file
diff --git a/devtools/shared/resources/tests/network_document.html b/devtools/shared/resources/tests/network_document.html
index 5c4744cb0cb9..2e7ff5afe73d 100644
--- a/devtools/shared/resources/tests/network_document.html
+++ b/devtools/shared/resources/tests/network_document.html
@@ -10,4 +10,4 @@
   <body>
     <p>Test for network events</p>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/bindings/BindingIPCUtils.h b/dom/bindings/BindingIPCUtils.h
index 5598e5896b71..5efb3ebd6d16 100644
--- a/dom/bindings/BindingIPCUtils.h
+++ b/dom/bindings/BindingIPCUtils.h
@@ -16,4 +16,4 @@ struct ParamTraits<mozilla::dom::CallerType>
           mozilla::dom::CallerType, mozilla::dom::CallerType::System,
           mozilla::dom::CallerType::NonSystem> {};
 }  // namespace IPC
-#endif  // _mozilla_dom_BindingIPCUtils_h
+#endif  // _mozilla_dom_BindingIPCUtils_h
\ No newline at end of file
diff --git a/dom/bindings/test/file_barewordGetsWindow_frame1.html b/dom/bindings/test/file_barewordGetsWindow_frame1.html
index 168e43b334d2..f20ba8a25778 100644
--- a/dom/bindings/test/file_barewordGetsWindow_frame1.html
+++ b/dom/bindings/test/file_barewordGetsWindow_frame1.html
@@ -1 +1 @@
-OLD
+OLD
\ No newline at end of file
diff --git a/dom/bindings/test/file_barewordGetsWindow_frame2.html b/dom/bindings/test/file_barewordGetsWindow_frame2.html
index 03a0d6dfaf6c..5f08364e3bbc 100644
--- a/dom/bindings/test/file_barewordGetsWindow_frame2.html
+++ b/dom/bindings/test/file_barewordGetsWindow_frame2.html
@@ -1 +1 @@
-NEW
+NEW
\ No newline at end of file
diff --git a/dom/canvas/CanvasGradient.cpp b/dom/canvas/CanvasGradient.cpp
index 272cef0c93ec..c92aadce5e0a 100644
--- a/dom/canvas/CanvasGradient.cpp
+++ b/dom/canvas/CanvasGradient.cpp
@@ -11,4 +11,4 @@ CanvasGradient::CanvasGradient(CanvasRenderingContext2D* aContext, Type aType)
     : mContext(aContext), mType(aType) {}
 
 CanvasGradient::~CanvasGradient() = default;
-}  // namespace mozilla::dom
+}  // namespace mozilla::dom
\ No newline at end of file
diff --git a/dom/canvas/CanvasPattern.cpp b/dom/canvas/CanvasPattern.cpp
index 9e3219b76e5d..fd41fac13fea 100644
--- a/dom/canvas/CanvasPattern.cpp
+++ b/dom/canvas/CanvasPattern.cpp
@@ -20,4 +20,4 @@ CanvasPattern::CanvasPattern(CanvasRenderingContext2D* aContext,
       mRepeat(aRepeat) {}
 
 CanvasPattern::~CanvasPattern() = default;
-}  // namespace mozilla::dom
+}  // namespace mozilla::dom
\ No newline at end of file
diff --git a/dom/canvas/MurmurHash3.h b/dom/canvas/MurmurHash3.h
index 95719f36b31b..b4c59465bcd3 100644
--- a/dom/canvas/MurmurHash3.h
+++ b/dom/canvas/MurmurHash3.h
@@ -20,4 +20,4 @@ void MurmurHash3_x64_128(const void* key, int len, uint32_t seed, void* out);
 
 //-----------------------------------------------------------------------------
 
-#endif  // _MURMURHASH3_H_
+#endif  // _MURMURHASH3_H_
\ No newline at end of file
diff --git a/dom/encoding/test/file_in_lk_TLD.html b/dom/encoding/test/file_in_lk_TLD.html
index 6756148a18a5..3f238998f8e8 100644
--- a/dom/encoding/test/file_in_lk_TLD.html
+++ b/dom/encoding/test/file_in_lk_TLD.html
@@ -6,4 +6,4 @@ function report() {
 }
 </script>
 <body onload="report();">
-<p>����͕��������ł��B</p>
+<p>����͕��������ł��B</p>
\ No newline at end of file
diff --git a/dom/encoding/test/file_utf16_be_bom.xhtml b/dom/encoding/test/file_utf16_be_bom.xhtml
index 27d630f3e880..18a5f7bce7cf 100644
Binary files a/dom/encoding/test/file_utf16_be_bom.xhtml and b/dom/encoding/test/file_utf16_be_bom.xhtml differ
diff --git a/dom/encoding/test/file_utf16_le_bom.css b/dom/encoding/test/file_utf16_le_bom.css
index b85fa2292619..fa6b79670ad0 100644
Binary files a/dom/encoding/test/file_utf16_le_bom.css and b/dom/encoding/test/file_utf16_le_bom.css differ
diff --git a/dom/encoding/test/file_utf16_le_bom.xhtml b/dom/encoding/test/file_utf16_le_bom.xhtml
index 0e8f1c460ccc..909a15129ea6 100644
Binary files a/dom/encoding/test/file_utf16_le_bom.xhtml and b/dom/encoding/test/file_utf16_le_bom.xhtml differ
diff --git a/dom/encoding/test/file_utf16_le_nobom.xhtml b/dom/encoding/test/file_utf16_le_nobom.xhtml
index 3ac0ed4918b1..e634a0ffe625 100644
Binary files a/dom/encoding/test/file_utf16_le_nobom.xhtml and b/dom/encoding/test/file_utf16_le_nobom.xhtml differ
diff --git a/dom/events/InputEventOptions.h b/dom/events/InputEventOptions.h
index 94096d759f1d..3eb4c21d69e8 100644
--- a/dom/events/InputEventOptions.h
+++ b/dom/events/InputEventOptions.h
@@ -72,4 +72,4 @@ struct MOZ_STACK_CLASS InputEventOptions final {
 
 }  // namespace mozilla
 
-#endif  // #ifndef mozilla_InputEventOptions_h
+#endif  // #ifndef mozilla_InputEventOptions_h
\ No newline at end of file
diff --git a/dom/gamepad/GamepadHandle.cpp b/dom/gamepad/GamepadHandle.cpp
index 0357975a7136..762df22cb5a2 100644
--- a/dom/gamepad/GamepadHandle.cpp
+++ b/dom/gamepad/GamepadHandle.cpp
@@ -37,4 +37,4 @@ bool operator<(const GamepadHandle& a, const GamepadHandle& b) {
   return uint8_t(a.mKind) < uint8_t(b.mKind);
 }
 
-}  // namespace mozilla::dom
+}  // namespace mozilla::dom
\ No newline at end of file
diff --git a/dom/gamepad/GamepadHandle.h b/dom/gamepad/GamepadHandle.h
index bd3e67f857cb..5b6e459bd1f7 100644
--- a/dom/gamepad/GamepadHandle.h
+++ b/dom/gamepad/GamepadHandle.h
@@ -86,4 +86,4 @@ static_assert(std::is_trivially_copyable<GamepadHandle>::value,
 
 }  // namespace mozilla::dom
 
-#endif  // mozilla_dom_gamepad_GamepadHandle_h
+#endif  // mozilla_dom_gamepad_GamepadHandle_h
\ No newline at end of file
diff --git a/dom/html/nsRadioVisitor.cpp b/dom/html/nsRadioVisitor.cpp
index 4ef1ef146f70..6e47dbb9ef97 100644
--- a/dom/html/nsRadioVisitor.cpp
+++ b/dom/html/nsRadioVisitor.cpp
@@ -56,4 +56,4 @@ bool nsRadioUpdateStateVisitor::Visit(nsIFormControl* aRadio) {
   input->UpdateState(true);
 
   return true;
-}
+}
\ No newline at end of file
diff --git a/dom/ipc/MMPrinter.h b/dom/ipc/MMPrinter.h
index c58acd69117e..5824178628b3 100644
--- a/dom/ipc/MMPrinter.h
+++ b/dom/ipc/MMPrinter.h
@@ -31,4 +31,4 @@ class MMPrinter {
 }  // namespace dom
 }  // namespace mozilla
 
-#endif /* MMPrinter_h */
+#endif /* MMPrinter_h */
\ No newline at end of file
diff --git a/dom/ipc/tests/file_dummy.html b/dom/ipc/tests/file_dummy.html
index 1a481c41630a..28939d8b3e25 100644
--- a/dom/ipc/tests/file_dummy.html
+++ b/dom/ipc/tests/file_dummy.html
@@ -1,4 +1,4 @@
 <!doctype html>
 <body>
   <h1>This is a dummy file</h1>
-</body>
+</body>
\ No newline at end of file
diff --git a/dom/l10n/tests/mochitest/document_l10n/test_docl10n.xhtml b/dom/l10n/tests/mochitest/document_l10n/test_docl10n.xhtml
index 3b20c0620ec4..6a75e8189918 100644
--- a/dom/l10n/tests/mochitest/document_l10n/test_docl10n.xhtml
+++ b/dom/l10n/tests/mochitest/document_l10n/test_docl10n.xhtml
@@ -57,4 +57,4 @@
 
   <p id="label1" />
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/media/autoplay/test/mochitest/file_autoplay_policy_play_before_loadedmetadata.html b/dom/media/autoplay/test/mochitest/file_autoplay_policy_play_before_loadedmetadata.html
index 3594d0f23606..717e8df48be0 100644
--- a/dom/media/autoplay/test/mochitest/file_autoplay_policy_play_before_loadedmetadata.html
+++ b/dom/media/autoplay/test/mochitest/file_autoplay_policy_play_before_loadedmetadata.html
@@ -60,4 +60,4 @@
     </pre>
 </body>
 
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/media/autoplay/test/mochitest/file_autoplay_policy_unmute_pauses.html b/dom/media/autoplay/test/mochitest/file_autoplay_policy_unmute_pauses.html
index 125ee156b6fe..900b52eb81f7 100644
--- a/dom/media/autoplay/test/mochitest/file_autoplay_policy_unmute_pauses.html
+++ b/dom/media/autoplay/test/mochitest/file_autoplay_policy_unmute_pauses.html
@@ -62,4 +62,4 @@
     </pre>
 </body>
 
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/media/gmp/CDMStorageIdProvider.cpp b/dom/media/gmp/CDMStorageIdProvider.cpp
index 53ae880d4062..215528d458e4 100644
--- a/dom/media/gmp/CDMStorageIdProvider.cpp
+++ b/dom/media/gmp/CDMStorageIdProvider.cpp
@@ -75,4 +75,4 @@ nsCString CDMStorageIdProvider::ComputeStorageId(const nsCString& aOriginSalt) {
 #endif
 }
 
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/dom/media/gmp/GMPStorage.h b/dom/media/gmp/GMPStorage.h
index 2e1641fe5ee7..bef86189ef04 100644
--- a/dom/media/gmp/GMPStorage.h
+++ b/dom/media/gmp/GMPStorage.h
@@ -38,4 +38,4 @@ already_AddRefed<GMPStorage> CreateGMPDiskStorage(const nsCString& aNodeId,
 }  // namespace gmp
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/dom/media/gmp/widevine-adapter/WidevineFileIO.h b/dom/media/gmp/widevine-adapter/WidevineFileIO.h
index 8c36f032befe..2fd25629675b 100644
--- a/dom/media/gmp/widevine-adapter/WidevineFileIO.h
+++ b/dom/media/gmp/widevine-adapter/WidevineFileIO.h
@@ -38,4 +38,4 @@ class WidevineFileIO : public cdm::FileIO, public GMPRecordClient {
 
 }  // namespace mozilla
 
-#endif  // WidevineFileIO_h_
+#endif  // WidevineFileIO_h_
\ No newline at end of file
diff --git a/dom/media/webrtc/sdp/HybridSdpParser.h b/dom/media/webrtc/sdp/HybridSdpParser.h
index 2b0ef399a561..0548bc132383 100644
--- a/dom/media/webrtc/sdp/HybridSdpParser.h
+++ b/dom/media/webrtc/sdp/HybridSdpParser.h
@@ -35,4 +35,4 @@ class HybridSdpParser : public SdpParser {
 
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/dom/media/webrtc/tests/mochitests/test_dataChannel_stats.html b/dom/media/webrtc/tests/mochitests/test_dataChannel_stats.html
index 63eba719dd6e..f3cec6824c4e 100644
--- a/dom/media/webrtc/tests/mochitests/test_dataChannel_stats.html
+++ b/dom/media/webrtc/tests/mochitests/test_dataChannel_stats.html
@@ -47,4 +47,4 @@
 </script>
 </pre>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/media/webrtc/tests/mochitests/test_peerConnection_rtcp_rsize.html b/dom/media/webrtc/tests/mochitests/test_peerConnection_rtcp_rsize.html
index fc22e038d9b7..888005b0bc99 100644
--- a/dom/media/webrtc/tests/mochitests/test_peerConnection_rtcp_rsize.html
+++ b/dom/media/webrtc/tests/mochitests/test_peerConnection_rtcp_rsize.html
@@ -77,4 +77,4 @@
 </script>
 </pre>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/media/webrtc/tests/mochitests/test_peerConnection_sender_and_receiver_stats.html b/dom/media/webrtc/tests/mochitests/test_peerConnection_sender_and_receiver_stats.html
index d38e032894ee..70dd8e029cb4 100644
--- a/dom/media/webrtc/tests/mochitests/test_peerConnection_sender_and_receiver_stats.html
+++ b/dom/media/webrtc/tests/mochitests/test_peerConnection_sender_and_receiver_stats.html
@@ -68,4 +68,4 @@
 </script>
 </pre>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/media/webvtt/test/mochitest/test_bug1242594.html b/dom/media/webvtt/test/mochitest/test_bug1242594.html
index 25c47948bb8c..cf1c4e78829a 100644
--- a/dom/media/webvtt/test/mochitest/test_bug1242594.html
+++ b/dom/media/webvtt/test/mochitest/test_bug1242594.html
@@ -43,4 +43,4 @@ SimpleTest.finish();
 </script>
 </pre>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/media/webvtt/test/mochitest/test_bug957847.html b/dom/media/webvtt/test/mochitest/test_bug957847.html
index 8bbea81bf904..17b45c0f837c 100644
--- a/dom/media/webvtt/test/mochitest/test_bug957847.html
+++ b/dom/media/webvtt/test/mochitest/test_bug957847.html
@@ -27,4 +27,4 @@ SimpleTest.finish();
 </script>
 </pre>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/payments/test/test_currency_amount_validation.html b/dom/payments/test/test_currency_amount_validation.html
index bf8284f37a80..6707d3f46f24 100644
--- a/dom/payments/test/test_currency_amount_validation.html
+++ b/dom/payments/test/test_currency_amount_validation.html
@@ -350,4 +350,4 @@ window.addEventListener("load", () => {
 </script>
 <body>
 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1367669">Mozilla Bug 1367669</a>
-<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1388661">Mozilla Bug 1388661</a>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1388661">Mozilla Bug 1388661</a>
\ No newline at end of file
diff --git a/dom/payments/test/test_payerDetails.html b/dom/payments/test/test_payerDetails.html
index 9a241803af35..3bbb62b48739 100644
--- a/dom/payments/test/test_payerDetails.html
+++ b/dom/payments/test/test_payerDetails.html
@@ -104,4 +104,4 @@
 </script>
 
 <body>
-  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1472026">Mozilla Bug 1472026</a>
+  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1472026">Mozilla Bug 1472026</a>
\ No newline at end of file
diff --git a/dom/permission/tests/file_empty.html b/dom/permission/tests/file_empty.html
index 15648ec5aa60..bc98b4d2ebe5 100644
--- a/dom/permission/tests/file_empty.html
+++ b/dom/permission/tests/file_empty.html
@@ -1,2 +1,2 @@
 <h1>I'm just a support file</h1>
-<p>I get loaded to do permission testing.</p>
+<p>I get loaded to do permission testing.</p>
\ No newline at end of file
diff --git a/dom/presentation/PresentationCallbacks.cpp b/dom/presentation/PresentationCallbacks.cpp
index 8880ba9b7cea..bb7963314fb6 100644
--- a/dom/presentation/PresentationCallbacks.cpp
+++ b/dom/presentation/PresentationCallbacks.cpp
@@ -248,4 +248,4 @@ PresentationResponderLoadingCallback::OnContentBlockingEvent(
 }
 
 }  // namespace dom
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/dom/res/hiddenWindow.html b/dom/res/hiddenWindow.html
index e1a8ac20d8f5..bc491e9b6b9c 100644
--- a/dom/res/hiddenWindow.html
+++ b/dom/res/hiddenWindow.html
@@ -2,4 +2,4 @@
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta charset="utf-8"><title></title></head><body></body></html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta charset="utf-8"><title></title></head><body></body></html>
\ No newline at end of file
diff --git a/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html b/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html
index 6b6a32821171..55e97ac24766 100644
Binary files a/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html and b/dom/serviceworkers/test/sw_clients/refresher_cached_compressed.html differ
diff --git a/dom/serviceworkers/test/sw_clients/refresher_compressed.html b/dom/serviceworkers/test/sw_clients/refresher_compressed.html
index e0861a518078..7a45bcafabff 100644
Binary files a/dom/serviceworkers/test/sw_clients/refresher_compressed.html and b/dom/serviceworkers/test/sw_clients/refresher_compressed.html differ
diff --git a/dom/tests/browser/beforeunload_test_page.html b/dom/tests/browser/beforeunload_test_page.html
index 12dc636e2351..4ef3bb56a249 100644
--- a/dom/tests/browser/beforeunload_test_page.html
+++ b/dom/tests/browser/beforeunload_test_page.html
@@ -89,4 +89,4 @@
 </script>
 
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/mochitest/test_vrController_displayId.html b/dom/vr/test/mochitest/test_vrController_displayId.html
index e69e3920d226..39d5f76b2a9d 100644
--- a/dom/vr/test/mochitest/test_vrController_displayId.html
+++ b/dom/vr/test/mochitest/test_vrController_displayId.html
@@ -54,4 +54,4 @@
       runVRTest(startTest);
     </script>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/mochitest/test_vrDisplay_canvas2d.html b/dom/vr/test/mochitest/test_vrDisplay_canvas2d.html
index 4d20e21352b9..2ebed1eef3d5 100644
--- a/dom/vr/test/mochitest/test_vrDisplay_canvas2d.html
+++ b/dom/vr/test/mochitest/test_vrDisplay_canvas2d.html
@@ -52,4 +52,4 @@
       runVRTest(startTest);
     </script>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/mochitest/test_vrDisplay_exitPresent.html b/dom/vr/test/mochitest/test_vrDisplay_exitPresent.html
index dc2c700723ee..8e0467e4d26b 100644
--- a/dom/vr/test/mochitest/test_vrDisplay_exitPresent.html
+++ b/dom/vr/test/mochitest/test_vrDisplay_exitPresent.html
@@ -48,4 +48,4 @@
     <iframe id="iframe1"></iframe>
     <iframe id="iframe2"></iframe>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/mochitest/test_vrDisplay_getFrameData.html b/dom/vr/test/mochitest/test_vrDisplay_getFrameData.html
index c8a986ae8e72..8ac397aa45f5 100644
--- a/dom/vr/test/mochitest/test_vrDisplay_getFrameData.html
+++ b/dom/vr/test/mochitest/test_vrDisplay_getFrameData.html
@@ -145,4 +145,4 @@
         runVRTest(startTest);
     </script>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/mochitest/test_vrDisplay_onvrdisplayconnect.html b/dom/vr/test/mochitest/test_vrDisplay_onvrdisplayconnect.html
index e1912c7c41c9..8f4018dc7466 100644
--- a/dom/vr/test/mochitest/test_vrDisplay_onvrdisplayconnect.html
+++ b/dom/vr/test/mochitest/test_vrDisplay_onvrdisplayconnect.html
@@ -40,4 +40,4 @@
     </script>
     <iframe id="iframe1"></iframe>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/mochitest/test_vrDisplay_onvrdisplaydeactivate_crosscontent.html b/dom/vr/test/mochitest/test_vrDisplay_onvrdisplaydeactivate_crosscontent.html
index 6c58e5efd138..e840f52ec313 100644
--- a/dom/vr/test/mochitest/test_vrDisplay_onvrdisplaydeactivate_crosscontent.html
+++ b/dom/vr/test/mochitest/test_vrDisplay_onvrdisplaydeactivate_crosscontent.html
@@ -51,4 +51,4 @@
     </script>
     <iframe id="iframe1"></iframe>
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/mochitest/test_vrDisplay_requestPresent.html b/dom/vr/test/mochitest/test_vrDisplay_requestPresent.html
index 4d021b6e0fe1..416f9e35c636 100644
--- a/dom/vr/test/mochitest/test_vrDisplay_requestPresent.html
+++ b/dom/vr/test/mochitest/test_vrDisplay_requestPresent.html
@@ -127,4 +127,4 @@
         runVRTest(startTest);
     </script>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/reftest/change_size.html b/dom/vr/test/reftest/change_size.html
index f810f308216a..f34a200f4c07 100644
--- a/dom/vr/test/reftest/change_size.html
+++ b/dom/vr/test/reftest/change_size.html
@@ -165,4 +165,4 @@ If this fails, something is seriously wrong. -->
   <div id='status'></div>
 </body>
 
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/vr/test/reftest/draw_rect.html b/dom/vr/test/reftest/draw_rect.html
index c6f52736c007..cc77595fb688 100644
--- a/dom/vr/test/reftest/draw_rect.html
+++ b/dom/vr/test/reftest/draw_rect.html
@@ -133,4 +133,4 @@ If this fails, something is seriously wrong. -->
   <div id='status'></div>
 </body>
 
-</html>
+</html>
\ No newline at end of file
diff --git a/dom/xhr/tests/file_XHR_system_redirect.html b/dom/xhr/tests/file_XHR_system_redirect.html
index eaca3f49fd15..8267b01d01fa 100644
--- a/dom/xhr/tests/file_XHR_system_redirect.html
+++ b/dom/xhr/tests/file_XHR_system_redirect.html
@@ -2,4 +2,4 @@
 <html>
 <body>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/editor/composer/crashtests/351236-1.html b/editor/composer/crashtests/351236-1.html
index 99674f1814f2..22133a21506f 100644
--- a/editor/composer/crashtests/351236-1.html
+++ b/editor/composer/crashtests/351236-1.html
@@ -34,4 +34,4 @@ This page should not crash Mozilla within 2 seconds<br>
 <iframe></iframe>
 </q>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrGlue.h b/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrGlue.h
index d3c75dc04c4b..303d6947cd07 100644
--- a/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrGlue.h
+++ b/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrGlue.h
@@ -34,4 +34,4 @@ extern hunspell_destruct_filemgr_t* moz_glue_hunspell_destruct_filemgr;
 }
 #endif
 
-#endif
+#endif
\ No newline at end of file
diff --git a/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrHost.h b/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrHost.h
index 8812416f71c5..f81bcc6131cc 100644
--- a/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrHost.h
+++ b/extensions/spellcheck/hunspell/glue/mozHunspellFileMgrHost.h
@@ -80,4 +80,4 @@ class mozHunspellCallbacks {
 };
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/gfx/layers/TextureSync.h b/gfx/layers/TextureSync.h
index a48646fcee18..4d6c88a52b32 100644
--- a/gfx/layers/TextureSync.h
+++ b/gfx/layers/TextureSync.h
@@ -46,4 +46,4 @@ class TextureSync {
 }  // namespace layers
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/gfx/layers/apz/src/ExpectedGeckoMetrics.cpp b/gfx/layers/apz/src/ExpectedGeckoMetrics.cpp
index 6056eb645653..b20b5d45433c 100644
--- a/gfx/layers/apz/src/ExpectedGeckoMetrics.cpp
+++ b/gfx/layers/apz/src/ExpectedGeckoMetrics.cpp
@@ -17,4 +17,4 @@ void ExpectedGeckoMetrics::UpdateFrom(const FrameMetrics& aMetrics) {
 }
 
 }  // namespace layers
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/gfx/layers/ipc/ShadowLayerUtilsX11.cpp b/gfx/layers/ipc/ShadowLayerUtilsX11.cpp
index 25f6ceba21f3..ba30f08ffb8d 100644
--- a/gfx/layers/ipc/ShadowLayerUtilsX11.cpp
+++ b/gfx/layers/ipc/ShadowLayerUtilsX11.cpp
@@ -150,4 +150,4 @@ bool ParamTraits<mozilla::layers::SurfaceDescriptorX11>::Read(
           ReadParam(aMsg, aIter, &aResult->mGLXPixmap));
 }
 
-}  // namespace IPC
+}  // namespace IPC
\ No newline at end of file
diff --git a/gfx/tests/gtest/PolygonTestUtils.cpp b/gfx/tests/gtest/PolygonTestUtils.cpp
index 04a2f4749886..7ce0b56c9679 100644
--- a/gfx/tests/gtest/PolygonTestUtils.cpp
+++ b/gfx/tests/gtest/PolygonTestUtils.cpp
@@ -160,4 +160,4 @@ TEST(PolygonTestUtils, TestSanity)
 
   AssertArrayEQ(t1, t1);
   AssertArrayEQ(t2, t2);
-}
+}
\ No newline at end of file
diff --git a/gfx/tests/gtest/TestMatrix.cpp b/gfx/tests/gtest/TestMatrix.cpp
index e55e8e793b1c..9ea41fec742b 100644
--- a/gfx/tests/gtest/TestMatrix.cpp
+++ b/gfx/tests/gtest/TestMatrix.cpp
@@ -142,4 +142,4 @@ TEST(Matrix4x4Flagged, Mult)
   // Check that Matrix4x4Flagged::operator*(Matrix4x4) produces the same result.
   Matrix4x4Flagged mixedResult = simple * general;
   EXPECT_EQ(realResult, mixedResult);
-}
+}
\ No newline at end of file
diff --git a/gfx/tests/reftest/1474722-ref.html b/gfx/tests/reftest/1474722-ref.html
index e0fadcf53f22..5903035aaaae 100644
--- a/gfx/tests/reftest/1474722-ref.html
+++ b/gfx/tests/reftest/1474722-ref.html
@@ -14,4 +14,4 @@
 <body style = "overflow:hidden">
 <div class="shadowed" style="height: 200vh"> long shadow </div>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/gfx/tests/reftest/1474722.html b/gfx/tests/reftest/1474722.html
index 9920eee23841..ffa63a24b8f7 100644
--- a/gfx/tests/reftest/1474722.html
+++ b/gfx/tests/reftest/1474722.html
@@ -14,4 +14,4 @@
 <body style = "overflow:hidden">
 <div class="shadowed" style="height: 100000px"> long shadow </div>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/gfx/tests/reftest/1616444-same-color-different-paths.html b/gfx/tests/reftest/1616444-same-color-different-paths.html
index be51b1d2434e..ca6cfbb5c18f 100644
--- a/gfx/tests/reftest/1616444-same-color-different-paths.html
+++ b/gfx/tests/reftest/1616444-same-color-different-paths.html
@@ -89,4 +89,4 @@
   <div class="swatch g-violet layer"></div>
   <div class="swatch g-violet layer add-border"></div>
   <br>
-</body></html>
+</body></html>
\ No newline at end of file
diff --git a/gfx/vr/FxROutputHandler.cpp b/gfx/vr/FxROutputHandler.cpp
index 3bf2fb62ce60..b771a2715488 100644
--- a/gfx/vr/FxROutputHandler.cpp
+++ b/gfx/vr/FxROutputHandler.cpp
@@ -93,4 +93,4 @@ void FxROutputHandler::UpdateOutput(ID3D11DeviceContext* aCtx) {
     aCtx->CopyResource(mTexCopy, texOrig);
     texOrig->Release();
   }
-}
+}
\ No newline at end of file
diff --git a/gfx/vr/FxROutputHandler.h b/gfx/vr/FxROutputHandler.h
index 33e246aae55e..9d49244a2bc2 100644
--- a/gfx/vr/FxROutputHandler.h
+++ b/gfx/vr/FxROutputHandler.h
@@ -27,4 +27,4 @@ class FxROutputHandler final {
  private:
   RefPtr<IDXGISwapChain> mSwapChain = nullptr;
   RefPtr<ID3D11Texture2D> mTexCopy = nullptr;
-};
+};
\ No newline at end of file
diff --git a/gfx/vr/FxRWindowManager.cpp b/gfx/vr/FxRWindowManager.cpp
index becaf214478f..898b02a4eb1b 100644
--- a/gfx/vr/FxRWindowManager.cpp
+++ b/gfx/vr/FxRWindowManager.cpp
@@ -47,4 +47,4 @@ bool FxRWindowManager::IsFxRWindow(const nsWindow* aWindow) const {
 uint64_t FxRWindowManager::GetWindowID() const {
   MOZ_ASSERT(mWindow);
   return mWindow->WindowID();
-}
+}
\ No newline at end of file
diff --git a/gfx/vr/FxRWindowManager.h b/gfx/vr/FxRWindowManager.h
index 214ee1ecbfb7..f07ba4ce5236 100644
--- a/gfx/vr/FxRWindowManager.h
+++ b/gfx/vr/FxRWindowManager.h
@@ -28,4 +28,4 @@ class FxRWindowManager final {
   // windows will require a data structure to collect windows as they are
   // created.
   nsPIDOMWindowOuter* mWindow;
-};
+};
\ No newline at end of file
diff --git a/gfx/vr/VRShMem.h b/gfx/vr/VRShMem.h
index a10b8189a81a..1dfa2c958244 100644
--- a/gfx/vr/VRShMem.h
+++ b/gfx/vr/VRShMem.h
@@ -102,4 +102,4 @@ class VRShMem final {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif
+#endif
\ No newline at end of file
diff --git a/gfx/vr/VRThread.h b/gfx/vr/VRThread.h
index 85d9ea4b8411..4d210a35aa85 100644
--- a/gfx/vr/VRThread.h
+++ b/gfx/vr/VRThread.h
@@ -43,4 +43,4 @@ class VRThread final {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_THREAD_H
+#endif  // GFX_VR_THREAD_H
\ No newline at end of file
diff --git a/gfx/vr/ipc/VRGPUChild.h b/gfx/vr/ipc/VRGPUChild.h
index 3c13ecfc7603..79a47d8c4fab 100644
--- a/gfx/vr/ipc/VRGPUChild.h
+++ b/gfx/vr/ipc/VRGPUChild.h
@@ -40,4 +40,4 @@ class VRGPUChild final : public PVRGPUChild {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_GPU_CHILD_H
+#endif  // GFX_VR_GPU_CHILD_H
\ No newline at end of file
diff --git a/gfx/vr/ipc/VRGPUParent.cpp b/gfx/vr/ipc/VRGPUParent.cpp
index dd931bb3eca8..949652d64b71 100644
--- a/gfx/vr/ipc/VRGPUParent.cpp
+++ b/gfx/vr/ipc/VRGPUParent.cpp
@@ -108,4 +108,4 @@ mozilla::ipc::IPCResult VRGPUParent::RecvPuppetCheckForCompletion() {
 bool VRGPUParent::IsClosed() { return mClosed; }
 
 }  // namespace gfx
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/gfx/vr/ipc/VRProcessChild.h b/gfx/vr/ipc/VRProcessChild.h
index 69d13a37e50f..fff87a544569 100644
--- a/gfx/vr/ipc/VRProcessChild.h
+++ b/gfx/vr/ipc/VRProcessChild.h
@@ -39,4 +39,4 @@ class VRProcessChild final : public mozilla::ipc::ProcessChild {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif /* GFX_VR_PROCESS_CHILD_H */
+#endif /* GFX_VR_PROCESS_CHILD_H */
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRControllerMapper.cpp b/gfx/vr/service/OpenVRControllerMapper.cpp
index 7cb4cfb563ee..d1a85d1391fb 100644
--- a/gfx/vr/service/OpenVRControllerMapper.cpp
+++ b/gfx/vr/service/OpenVRControllerMapper.cpp
@@ -86,4 +86,4 @@ void OpenVRControllerMapper::GetAxisValueFromAction(
   }
 }
 
-}  // namespace mozilla::gfx
+}  // namespace mozilla::gfx
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRControllerMapper.h b/gfx/vr/service/OpenVRControllerMapper.h
index 0fe96c8bbeca..d85dc1e3f68a 100644
--- a/gfx/vr/service/OpenVRControllerMapper.h
+++ b/gfx/vr/service/OpenVRControllerMapper.h
@@ -93,4 +93,4 @@ class OpenVRControllerMapper {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_SERVICE_OPENVRCONTROLLERMAPPER_H
+#endif  // GFX_VR_SERVICE_OPENVRCONTROLLERMAPPER_H
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRCosmosMapper.cpp b/gfx/vr/service/OpenVRCosmosMapper.cpp
index 8c5c87253d01..a959562c11b8 100644
--- a/gfx/vr/service/OpenVRCosmosMapper.cpp
+++ b/gfx/vr/service/OpenVRCosmosMapper.cpp
@@ -48,4 +48,4 @@ void OpenVRCosmosMapper::UpdateButtons(VRControllerState& aControllerState,
   aControllerState.numAxes = mNumAxes;
 }
 
-}  // namespace mozilla::gfx
+}  // namespace mozilla::gfx
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRCosmosMapper.h b/gfx/vr/service/OpenVRCosmosMapper.h
index 3796cd1c6dbc..7c60c99bcab1 100644
--- a/gfx/vr/service/OpenVRCosmosMapper.h
+++ b/gfx/vr/service/OpenVRCosmosMapper.h
@@ -23,4 +23,4 @@ class OpenVRCosmosMapper : public OpenVRControllerMapper {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_SERVICE_OPENVRCOSMOSMAPPER_H
+#endif  // GFX_VR_SERVICE_OPENVRCOSMOSMAPPER_H
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRDefaultMapper.cpp b/gfx/vr/service/OpenVRDefaultMapper.cpp
index ac653694754f..27e29bd169d8 100644
--- a/gfx/vr/service/OpenVRDefaultMapper.cpp
+++ b/gfx/vr/service/OpenVRDefaultMapper.cpp
@@ -67,4 +67,4 @@ void OpenVRDefaultMapper::UpdateButtons(VRControllerState& aControllerState,
   aControllerState.numAxes = mNumAxes;
 }
 
-}  // namespace mozilla::gfx
+}  // namespace mozilla::gfx
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRDefaultMapper.h b/gfx/vr/service/OpenVRDefaultMapper.h
index 0478a9068778..2940084ce674 100644
--- a/gfx/vr/service/OpenVRDefaultMapper.h
+++ b/gfx/vr/service/OpenVRDefaultMapper.h
@@ -23,4 +23,4 @@ class OpenVRDefaultMapper : public OpenVRControllerMapper {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_SERVICE_OPENVRDEFAULTMAPPER_H
+#endif  // GFX_VR_SERVICE_OPENVRDEFAULTMAPPER_H
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRKnucklesMapper.cpp b/gfx/vr/service/OpenVRKnucklesMapper.cpp
index 74f38c820caa..a4600d83c66c 100644
--- a/gfx/vr/service/OpenVRKnucklesMapper.cpp
+++ b/gfx/vr/service/OpenVRKnucklesMapper.cpp
@@ -59,4 +59,4 @@ void OpenVRKnucklesMapper::UpdateButtons(VRControllerState& aControllerState,
   aControllerState.numAxes = mNumAxes;
 }
 
-}  // namespace mozilla::gfx
+}  // namespace mozilla::gfx
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRKnucklesMapper.h b/gfx/vr/service/OpenVRKnucklesMapper.h
index 45168e7749e5..84e40d0c9eef 100644
--- a/gfx/vr/service/OpenVRKnucklesMapper.h
+++ b/gfx/vr/service/OpenVRKnucklesMapper.h
@@ -23,4 +23,4 @@ class OpenVRKnucklesMapper : public OpenVRControllerMapper {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_SERVICE_OPENVRKNUCKLESMAPPER_H
+#endif  // GFX_VR_SERVICE_OPENVRKNUCKLESMAPPER_H
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRViveMapper.cpp b/gfx/vr/service/OpenVRViveMapper.cpp
index a5fadd6e371d..1008b0521de5 100644
--- a/gfx/vr/service/OpenVRViveMapper.cpp
+++ b/gfx/vr/service/OpenVRViveMapper.cpp
@@ -40,4 +40,4 @@ void OpenVRViveMapper::UpdateButtons(VRControllerState& aControllerState,
   aControllerState.numAxes = mNumAxes;
 }
 
-}  // namespace mozilla::gfx
+}  // namespace mozilla::gfx
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRViveMapper.h b/gfx/vr/service/OpenVRViveMapper.h
index 93b999df5c2a..46bbeb7693d5 100644
--- a/gfx/vr/service/OpenVRViveMapper.h
+++ b/gfx/vr/service/OpenVRViveMapper.h
@@ -23,4 +23,4 @@ class OpenVRViveMapper : public OpenVRControllerMapper {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_SERVICE_OPENVRVIVEMAPPER_H
+#endif  // GFX_VR_SERVICE_OPENVRVIVEMAPPER_H
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRWMRMapper.cpp b/gfx/vr/service/OpenVRWMRMapper.cpp
index 4611d9ee0afc..472a051f4a02 100644
--- a/gfx/vr/service/OpenVRWMRMapper.cpp
+++ b/gfx/vr/service/OpenVRWMRMapper.cpp
@@ -48,4 +48,4 @@ void OpenVRWMRMapper::UpdateButtons(VRControllerState& aControllerState,
   aControllerState.numAxes = mNumAxes;
 }
 
-}  // namespace mozilla::gfx
+}  // namespace mozilla::gfx
\ No newline at end of file
diff --git a/gfx/vr/service/OpenVRWMRMapper.h b/gfx/vr/service/OpenVRWMRMapper.h
index 538d1edfeb93..71ef70483386 100644
--- a/gfx/vr/service/OpenVRWMRMapper.h
+++ b/gfx/vr/service/OpenVRWMRMapper.h
@@ -23,4 +23,4 @@ class OpenVRWMRMapper : public OpenVRControllerMapper {
 }  // namespace gfx
 }  // namespace mozilla
 
-#endif  // GFX_VR_SERVICE_OPENVRWMRMAPPER_H
+#endif  // GFX_VR_SERVICE_OPENVRWMRMAPPER_H
\ No newline at end of file
diff --git a/gfx/vr/vrhost/vrhostex.h b/gfx/vr/vrhost/vrhostex.h
index 70f4f98fbacb..e2c8f451830d 100644
--- a/gfx/vr/vrhost/vrhostex.h
+++ b/gfx/vr/vrhost/vrhostex.h
@@ -30,4 +30,4 @@ typedef void (*PFN_WAITFORVREVENT)(uint32_t& nVRWindowID, uint32_t& eventType,
                                    uint32_t& eventData1, uint32_t& eventData2);
 
 typedef void (*PFN_SENDVRTELEMETRY)(uint32_t nVRWindowID, uint32_t telemetryId,
-                                    uint32_t value);
+                                    uint32_t value);
\ No newline at end of file
diff --git a/intl/JapaneseDetector.h b/intl/JapaneseDetector.h
index 4407016facc8..86efcdcb2a22 100644
--- a/intl/JapaneseDetector.h
+++ b/intl/JapaneseDetector.h
@@ -121,4 +121,4 @@ class JapaneseDetector final {
 
 };  // namespace mozilla
 
-#endif  // mozilla_JapaneseDetector_h
+#endif  // mozilla_JapaneseDetector_h
\ No newline at end of file
diff --git a/ipc/glue/LibrarySandboxPreload.cpp b/ipc/glue/LibrarySandboxPreload.cpp
index a49b8458b34b..2f6ff794e2de 100644
--- a/ipc/glue/LibrarySandboxPreload.cpp
+++ b/ipc/glue/LibrarySandboxPreload.cpp
@@ -79,4 +79,4 @@ void PreloadSandboxedDynamicLibraries() {
 }
 
 }  // namespace ipc
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/ipc/glue/LibrarySandboxPreload.h b/ipc/glue/LibrarySandboxPreload.h
index 0193f2f8a68c..d6cc8ad81f4d 100644
--- a/ipc/glue/LibrarySandboxPreload.h
+++ b/ipc/glue/LibrarySandboxPreload.h
@@ -15,4 +15,4 @@ nsAutoCString GetSandboxedOggPath();
 void PreloadSandboxedDynamicLibraries();
 }  // namespace ipc
 }  // namespace mozilla
-#endif
+#endif
\ No newline at end of file
diff --git a/layout/base/RelativeTo.h b/layout/base/RelativeTo.h
index e82802e2e859..8db636218299 100644
--- a/layout/base/RelativeTo.h
+++ b/layout/base/RelativeTo.h
@@ -48,4 +48,4 @@ struct RelativeTo {
 
 }  // namespace mozilla
 
-#endif  // mozilla_RelativeTo_h
+#endif  // mozilla_RelativeTo_h
\ No newline at end of file
diff --git a/layout/base/nsRefreshObservers.cpp b/layout/base/nsRefreshObservers.cpp
index 020181bec25d..5e5ee2dc0c14 100644
--- a/layout/base/nsRefreshObservers.cpp
+++ b/layout/base/nsRefreshObservers.cpp
@@ -38,4 +38,4 @@ void OneShotPostRefreshObserver::DidRefresh() {
   delete this;
 }
 
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/mfbt/tests/TestArray.cpp b/mfbt/tests/TestArray.cpp
index ff41001e0a21..9c7ae395fccd 100644
--- a/mfbt/tests/TestArray.cpp
+++ b/mfbt/tests/TestArray.cpp
@@ -28,4 +28,4 @@ void TestInitialValueByConstructor() {
 int main() {
   TestInitialValueByConstructor();
   return 0;
-}
+}
\ No newline at end of file
diff --git a/mfbt/tests/TestAtomicBitfields.cpp b/mfbt/tests/TestAtomicBitfields.cpp
index 237dbde538a5..64037b296b5c 100644
--- a/mfbt/tests/TestAtomicBitfields.cpp
+++ b/mfbt/tests/TestAtomicBitfields.cpp
@@ -186,4 +186,4 @@ int main() {
   TEST_LOPSIDED(32);
   TEST_LOPSIDED(64);
   return 0;
-}
+}
\ No newline at end of file
diff --git a/mfbt/tests/TestRandomNum.cpp b/mfbt/tests/TestRandomNum.cpp
index c696cea3bc9e..6e5ab1edb1af 100644
--- a/mfbt/tests/TestRandomNum.cpp
+++ b/mfbt/tests/TestRandomNum.cpp
@@ -53,4 +53,4 @@ static void TestRandomUint64() {
 int main() {
   TestRandomUint64();
   return 0;
-}
+}
\ No newline at end of file
diff --git a/mobile/android/components/geckoview/GeckoViewExternalAppService.h b/mobile/android/components/geckoview/GeckoViewExternalAppService.h
index 1dfb7c949114..cc3b9f0b57b2 100644
--- a/mobile/android/components/geckoview/GeckoViewExternalAppService.h
+++ b/mobile/android/components/geckoview/GeckoViewExternalAppService.h
@@ -23,4 +23,4 @@ class GeckoViewExternalAppService : public nsIExternalHelperAppService {
   static mozilla::StaticRefPtr<GeckoViewExternalAppService> sService;
 };
 
-#endif
+#endif
\ No newline at end of file
diff --git a/mobile/android/themes/core/aboutExperiments.css b/mobile/android/themes/core/aboutExperiments.css
index 7ad9457ad3b8..328e03a63ad9 100644
--- a/mobile/android/themes/core/aboutExperiments.css
+++ b/mobile/android/themes/core/aboutExperiments.css
@@ -16,4 +16,4 @@ li[isEnabled="true"] {
 }
 li[isEnabled="false"] {
   background-color: #ef9a9a;
-}
+}
\ No newline at end of file
diff --git a/netwerk/base/IPv6Utils.h b/netwerk/base/IPv6Utils.h
index 437c0befec92..e472198b09bb 100644
--- a/netwerk/base/IPv6Utils.h
+++ b/netwerk/base/IPv6Utils.h
@@ -47,4 +47,4 @@ static int ipv6_scope(const unsigned char addr[16]) {
 }  // namespace net
 }  // namespace mozilla
 
-#endif  // NETWORK_IPV6_UTILS_H_
+#endif  // NETWORK_IPV6_UTILS_H_
\ No newline at end of file
diff --git a/netwerk/protocol/ftp/nsFTPChannel.cpp b/netwerk/protocol/ftp/nsFTPChannel.cpp
index 97a7be1e6831..e6d95de1b169 100644
--- a/netwerk/protocol/ftp/nsFTPChannel.cpp
+++ b/netwerk/protocol/ftp/nsFTPChannel.cpp
@@ -210,4 +210,4 @@ nsFtpChannel::Resume() {
   NS_ENSURE_TRUE(mSuspendCount > 0, NS_ERROR_UNEXPECTED);
   --mSuspendCount;
   return nsBaseChannel::Resume();
-}
+}
\ No newline at end of file
diff --git a/remote/test/browser/input/doc_dispatchKeyEvent_race.html b/remote/test/browser/input/doc_dispatchKeyEvent_race.html
index f8f45bae88fe..2b6093db9922 100644
--- a/remote/test/browser/input/doc_dispatchKeyEvent_race.html
+++ b/remote/test/browser/input/doc_dispatchKeyEvent_race.html
@@ -24,4 +24,4 @@
     });
   </script>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/testing/marionette/harness/marionette_harness/www/html5/boolean_attributes.html b/testing/marionette/harness/marionette_harness/www/html5/boolean_attributes.html
index 431e575aefc6..eb0d458b84e3 100644
--- a/testing/marionette/harness/marionette_harness/www/html5/boolean_attributes.html
+++ b/testing/marionette/harness/marionette_harness/www/html5/boolean_attributes.html
@@ -1,2 +1,2 @@
 <!DOCTYPE html>
-<input id='disabled' disabled>
+<input id='disabled' disabled>
\ No newline at end of file
diff --git a/testing/marionette/harness/marionette_harness/www/html5/test_html_inputs.html b/testing/marionette/harness/marionette_harness/www/html5/test_html_inputs.html
index a170ced1ab43..96c9b97e3bab 100644
--- a/testing/marionette/harness/marionette_harness/www/html5/test_html_inputs.html
+++ b/testing/marionette/harness/marionette_harness/www/html5/test_html_inputs.html
@@ -1,2 +1,2 @@
 <!DOCTYPE html>
-<input id='number' type=number>
+<input id='number' type=number>
\ No newline at end of file
diff --git a/testing/marionette/harness/marionette_harness/www/slow_resource.html b/testing/marionette/harness/marionette_harness/www/slow_resource.html
index b87d9f4b86e0..2f53b5870ec0 100644
--- a/testing/marionette/harness/marionette_harness/www/slow_resource.html
+++ b/testing/marionette/harness/marionette_harness/www/slow_resource.html
@@ -10,4 +10,4 @@
 <body>
   <img src="/slow?delay=4" id="slow" />
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/testing/marionette/harness/marionette_harness/www/windowHandles.html b/testing/marionette/harness/marionette_harness/www/windowHandles.html
index bcd0b08dc375..165526c8aced 100644
--- a/testing/marionette/harness/marionette_harness/www/windowHandles.html
+++ b/testing/marionette/harness/marionette_harness/www/windowHandles.html
@@ -13,4 +13,4 @@
 
   <a href="" id="new-window" onClick='javascript:window.open("empty.html", null, "location=1,toolbar=1");'>New Window</a>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/testing/web-platform/mozilla/tests/wasm/spec/js/harness/testharness.css b/testing/web-platform/mozilla/tests/wasm/spec/js/harness/testharness.css
index a5f935a9b119..e2ed5a043f96 100644
--- a/testing/web-platform/mozilla/tests/wasm/spec/js/harness/testharness.css
+++ b/testing/web-platform/mozilla/tests/wasm/spec/js/harness/testharness.css
@@ -99,4 +99,4 @@ span.timeout {
 
 span.ok, span.timeout, span.error {
     font-variant:small-caps;
-}
+}
\ No newline at end of file
diff --git a/toolkit/components/certviewer/content/components/about-certificate-section.css b/toolkit/components/certviewer/content/components/about-certificate-section.css
index 4f472b57d5d3..b9774260414f 100644
--- a/toolkit/components/certviewer/content/components/about-certificate-section.css
+++ b/toolkit/components/certviewer/content/components/about-certificate-section.css
@@ -4,4 +4,4 @@
 
 :host {
   margin: 2em;
-}
+}
\ No newline at end of file
diff --git a/toolkit/components/extensions/test/mochitest/test_ext_webnavigation_incognito.html b/toolkit/components/extensions/test/mochitest/test_ext_webnavigation_incognito.html
index 6b161d8247ab..c398b52c0697 100644
--- a/toolkit/components/extensions/test/mochitest/test_ext_webnavigation_incognito.html
+++ b/toolkit/components/extensions/test/mochitest/test_ext_webnavigation_incognito.html
@@ -106,4 +106,4 @@ add_task(async function webnav_test_incognito() {
 </script>
 
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/toolkit/components/printing/tests/simplifyNonArticleSample.html b/toolkit/components/printing/tests/simplifyNonArticleSample.html
index e216af3c1fc3..995da417fc23 100644
--- a/toolkit/components/printing/tests/simplifyNonArticleSample.html
+++ b/toolkit/components/printing/tests/simplifyNonArticleSample.html
@@ -6,4 +6,4 @@
 </head>
 <body>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/toolkit/components/processtools/ProcessToolsService.h b/toolkit/components/processtools/ProcessToolsService.h
index 932fd5d4eb33..526ff3825e21 100644
--- a/toolkit/components/processtools/ProcessToolsService.h
+++ b/toolkit/components/processtools/ProcessToolsService.h
@@ -5,4 +5,4 @@
 
 #include "nsIProcessToolsService.h"
 
-already_AddRefed<nsIProcessToolsService> GetProcessToolsService();
+already_AddRefed<nsIProcessToolsService> GetProcessToolsService();
\ No newline at end of file
diff --git a/toolkit/components/remote/RemoteUtils.h b/toolkit/components/remote/RemoteUtils.h
index 11ba96651b86..e8097faf94e9 100644
--- a/toolkit/components/remote/RemoteUtils.h
+++ b/toolkit/components/remote/RemoteUtils.h
@@ -19,4 +19,4 @@ char* ConstructCommandLine(int32_t argc, char** argv,
                            const char* aDesktopStartupID,
                            int* aCommandLineLength);
 
-#endif  // TOOLKIT_COMPONENTS_REMOTE_REMOTEUTILS_H_
+#endif  // TOOLKIT_COMPONENTS_REMOTE_REMOTEUTILS_H_
\ No newline at end of file
diff --git a/toolkit/components/remotebrowserutils/tests/browser/file_postmsg_parent.html b/toolkit/components/remotebrowserutils/tests/browser/file_postmsg_parent.html
index d5f640775b97..1d4c904bfae3 100644
--- a/toolkit/components/remotebrowserutils/tests/browser/file_postmsg_parent.html
+++ b/toolkit/components/remotebrowserutils/tests/browser/file_postmsg_parent.html
@@ -2,4 +2,4 @@
 <html>
 <body onload="parent.postMessage({location: window.location.href}, '*')">
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/toolkit/components/resistfingerprinting/RelativeTimeline.h b/toolkit/components/resistfingerprinting/RelativeTimeline.h
index 8d8aaf0b5d9e..ba2cb96e5cf4 100644
--- a/toolkit/components/resistfingerprinting/RelativeTimeline.h
+++ b/toolkit/components/resistfingerprinting/RelativeTimeline.h
@@ -20,4 +20,4 @@ class RelativeTimeline {
 
 }  // namespace mozilla
 
-#endif /* __RelativeTimeline_h__ */
+#endif /* __RelativeTimeline_h__ */
\ No newline at end of file
diff --git a/toolkit/components/telemetry/core/UserInteractionInfo.h b/toolkit/components/telemetry/core/UserInteractionInfo.h
index e20017b7908f..fff0301b271f 100644
--- a/toolkit/components/telemetry/core/UserInteractionInfo.h
+++ b/toolkit/components/telemetry/core/UserInteractionInfo.h
@@ -27,4 +27,4 @@ struct UserInteractionInfo {
 
 }  // namespace
 
-#endif  // TelemetryUserInteractionInfo_h__
+#endif  // TelemetryUserInteractionInfo_h__
\ No newline at end of file
diff --git a/toolkit/components/url-classifier/tests/mochitest/evil.css b/toolkit/components/url-classifier/tests/mochitest/evil.css
index 62d506c89939..f6f08d7c5cd1 100644
--- a/toolkit/components/url-classifier/tests/mochitest/evil.css
+++ b/toolkit/components/url-classifier/tests/mochitest/evil.css
@@ -1 +1 @@
-#styleCheck { visibility: hidden; }
+#styleCheck { visibility: hidden; }
\ No newline at end of file
diff --git a/toolkit/locales/en-US/chrome/global/aboutStudies.properties b/toolkit/locales/en-US/chrome/global/aboutStudies.properties
index d584c94556ed..188139fdda34 100644
--- a/toolkit/locales/en-US/chrome/global/aboutStudies.properties
+++ b/toolkit/locales/en-US/chrome/global/aboutStudies.properties
@@ -29,4 +29,4 @@ enabledList = What’s this? %S may install and run studies from time to time.
 # name of a preference (such as "stream.improvesearch.topSiteSearchShortcuts")
 # and $2%S will be replaced with the value of that preference. Both values will
 # be formatted differently than the surrounding text.
-preferenceStudyDescription = This study sets %1$S to %2$S.
+preferenceStudyDescription = This study sets %1$S to %2$S.
\ No newline at end of file
diff --git a/toolkit/modules/tests/browser/file_getSelectionDetails_inputs.html b/toolkit/modules/tests/browser/file_getSelectionDetails_inputs.html
index 2e49146785e1..2ceac78c27ec 100644
--- a/toolkit/modules/tests/browser/file_getSelectionDetails_inputs.html
+++ b/toolkit/modules/tests/browser/file_getSelectionDetails_inputs.html
@@ -6,4 +6,4 @@
     <input id="not-url" value="foo. bar">
     <input id="not-url-number" value="3.5">
   </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/toolkit/system/windowsDHCPClient/DHCPUtils.h b/toolkit/system/windowsDHCPClient/DHCPUtils.h
index 20f2996acbca..ba67edabe641 100644
--- a/toolkit/system/windowsDHCPClient/DHCPUtils.h
+++ b/toolkit/system/windowsDHCPClient/DHCPUtils.h
@@ -28,4 +28,4 @@ nsresult RetrieveOption(
 }  // namespace system
 }  // namespace toolkit
 }  // namespace mozilla
-#endif  // mozilla_toolkit_system_windowsDHCPClient_DHCPUtils_h
+#endif  // mozilla_toolkit_system_windowsDHCPClient_DHCPUtils_h
\ No newline at end of file
diff --git a/toolkit/themes/linux/global/in-content/info-pages.css b/toolkit/themes/linux/global/in-content/info-pages.css
index bdfec2d2841a..799074082dc3 100644
--- a/toolkit/themes/linux/global/in-content/info-pages.css
+++ b/toolkit/themes/linux/global/in-content/info-pages.css
@@ -2,4 +2,4 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-%include ../../../shared/in-content/info-pages.inc.css
+%include ../../../shared/in-content/info-pages.inc.css
\ No newline at end of file
diff --git a/toolkit/themes/osx/global/in-content/info-pages.css b/toolkit/themes/osx/global/in-content/info-pages.css
index bdfec2d2841a..799074082dc3 100644
--- a/toolkit/themes/osx/global/in-content/info-pages.css
+++ b/toolkit/themes/osx/global/in-content/info-pages.css
@@ -2,4 +2,4 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-%include ../../../shared/in-content/info-pages.inc.css
+%include ../../../shared/in-content/info-pages.inc.css
\ No newline at end of file
diff --git a/toolkit/themes/windows/global/in-content/info-pages.css b/toolkit/themes/windows/global/in-content/info-pages.css
index bdfec2d2841a..799074082dc3 100644
--- a/toolkit/themes/windows/global/in-content/info-pages.css
+++ b/toolkit/themes/windows/global/in-content/info-pages.css
@@ -2,4 +2,4 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-%include ../../../shared/in-content/info-pages.inc.css
+%include ../../../shared/in-content/info-pages.inc.css
\ No newline at end of file
diff --git a/toolkit/xre/updaterfileutils_osx.h b/toolkit/xre/updaterfileutils_osx.h
index 1fa0db1f4e6d..afdc4f6232ef 100644
--- a/toolkit/xre/updaterfileutils_osx.h
+++ b/toolkit/xre/updaterfileutils_osx.h
@@ -10,4 +10,4 @@ extern "C" {
 bool IsRecursivelyWritable(const char* aPath);
 }
 
-#endif
+#endif
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-incorrect-roundings.cpp b/tools/clang-tidy/test/bugprone-incorrect-roundings.cpp
index ee37b56ae002..94aa372f6b89 100644
--- a/tools/clang-tidy/test/bugprone-incorrect-roundings.cpp
+++ b/tools/clang-tidy/test/bugprone-incorrect-roundings.cpp
@@ -4,4 +4,4 @@ void f1()
   int x;
 
   x = (d + 0.5);
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-integer-division.cpp b/tools/clang-tidy/test/bugprone-integer-division.cpp
index 058edffe3939..9f8f32257fbf 100644
--- a/tools/clang-tidy/test/bugprone-integer-division.cpp
+++ b/tools/clang-tidy/test/bugprone-integer-division.cpp
@@ -2,4 +2,4 @@ float f() {
   int a = 2;
   int b = 10;
   return a/b;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-macro-parentheses.cpp b/tools/clang-tidy/test/bugprone-macro-parentheses.cpp
index 53c22090a196..21ffacae2f5e 100644
--- a/tools/clang-tidy/test/bugprone-macro-parentheses.cpp
+++ b/tools/clang-tidy/test/bugprone-macro-parentheses.cpp
@@ -2,4 +2,4 @@
 #define BAD2              1+2
 #define BAD3(A)           (A+1)
 #define BAD4(x)           ((unsigned char)(x & 0xff))
-#define BAD5(X) A*B=(C*)X+2
+#define BAD5(X) A*B=(C*)X+2
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-misplaced-widening-cast.cpp b/tools/clang-tidy/test/bugprone-misplaced-widening-cast.cpp
index e75541bf6e4a..abb43c5178f3 100644
--- a/tools/clang-tidy/test/bugprone-misplaced-widening-cast.cpp
+++ b/tools/clang-tidy/test/bugprone-misplaced-widening-cast.cpp
@@ -1,3 +1,3 @@
 long f(int x) {
     return (long)(x * 1000);
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-multiple-statement-macro.cpp b/tools/clang-tidy/test/bugprone-multiple-statement-macro.cpp
index 7ad2a2df6411..1bd49c7a9ee6 100644
--- a/tools/clang-tidy/test/bugprone-multiple-statement-macro.cpp
+++ b/tools/clang-tidy/test/bugprone-multiple-statement-macro.cpp
@@ -7,4 +7,4 @@ void F();
 void positives() {
   if (1)
     BAD_MACRO(1);
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-sizeof-expression.cpp b/tools/clang-tidy/test/bugprone-sizeof-expression.cpp
index f5f1f469cec0..3cc120d0ba47 100644
--- a/tools/clang-tidy/test/bugprone-sizeof-expression.cpp
+++ b/tools/clang-tidy/test/bugprone-sizeof-expression.cpp
@@ -1,3 +1,3 @@
 class C {
   int size() { return sizeof(this); }
-};
+};
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-suspicious-string-compare.cpp b/tools/clang-tidy/test/bugprone-suspicious-string-compare.cpp
index 505a9d282c1f..38ec728fbb0d 100644
--- a/tools/clang-tidy/test/bugprone-suspicious-string-compare.cpp
+++ b/tools/clang-tidy/test/bugprone-suspicious-string-compare.cpp
@@ -5,4 +5,4 @@ int strcmp(const char *, const char *);
 int test_warning_patterns() {
   if (strcmp(A, "a"))
     return 0;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-too-small-loop-variable.cpp b/tools/clang-tidy/test/bugprone-too-small-loop-variable.cpp
index 4dc8ed7a227c..fa6dec62c0e6 100644
--- a/tools/clang-tidy/test/bugprone-too-small-loop-variable.cpp
+++ b/tools/clang-tidy/test/bugprone-too-small-loop-variable.cpp
@@ -1,4 +1,4 @@
 int main() {
   long size = 294967296l;
   for (short i = 0; i < size; ++i) {}
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/bugprone-use-after-move.cpp b/tools/clang-tidy/test/bugprone-use-after-move.cpp
index f90a8700d690..0433a0c00a47 100644
--- a/tools/clang-tidy/test/bugprone-use-after-move.cpp
+++ b/tools/clang-tidy/test/bugprone-use-after-move.cpp
@@ -59,4 +59,4 @@ void func() {
   ptr.get();
   static_cast<bool>(ptr);
   *ptr;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/clang-analyzer-core.DivideZero.cpp b/tools/clang-tidy/test/clang-analyzer-core.DivideZero.cpp
index aac9f7c9f6ec..ad2d46fa809d 100644
--- a/tools/clang-tidy/test/clang-analyzer-core.DivideZero.cpp
+++ b/tools/clang-tidy/test/clang-analyzer-core.DivideZero.cpp
@@ -1,4 +1,4 @@
 void test(int z) {
   if (z == 0)
     int x = 1 / z;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/clang-analyzer-core.NonNullParamChecker.cpp b/tools/clang-tidy/test/clang-analyzer-core.NonNullParamChecker.cpp
index bc071f545351..0832f6b5c068 100644
--- a/tools/clang-tidy/test/clang-analyzer-core.NonNullParamChecker.cpp
+++ b/tools/clang-tidy/test/clang-analyzer-core.NonNullParamChecker.cpp
@@ -3,4 +3,4 @@ int f(int *p) __attribute__((nonnull));
 void test(int *p) {
   if (!p)
     f(p); // warn
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/clang-analyzer-core.NullDereference.cpp b/tools/clang-tidy/test/clang-analyzer-core.NullDereference.cpp
index 6c9c5555325a..1ea842546dd1 100644
--- a/tools/clang-tidy/test/clang-analyzer-core.NullDereference.cpp
+++ b/tools/clang-tidy/test/clang-analyzer-core.NullDereference.cpp
@@ -6,4 +6,4 @@ public:
 void test() {
   C *pc = 0;
   int k = pc->x;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/clang-analyzer-core.UndefinedBinaryOperatorResult.cpp b/tools/clang-tidy/test/clang-analyzer-core.UndefinedBinaryOperatorResult.cpp
index 1351c35f4401..246ca5f39d80 100644
--- a/tools/clang-tidy/test/clang-analyzer-core.UndefinedBinaryOperatorResult.cpp
+++ b/tools/clang-tidy/test/clang-analyzer-core.UndefinedBinaryOperatorResult.cpp
@@ -1,4 +1,4 @@
 void test() {
   int x;
   int y = x + 1;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Assign.cpp b/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Assign.cpp
index e9685d48a41f..ee8ea55b9c48 100644
--- a/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Assign.cpp
+++ b/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Assign.cpp
@@ -1,4 +1,4 @@
 void test() {
   int x;
   x |= 1;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Branch.cpp b/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Branch.cpp
index 7a985eb08064..3ce9a060ba46 100644
--- a/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Branch.cpp
+++ b/tools/clang-tidy/test/clang-analyzer-core.uninitialized.Branch.cpp
@@ -3,4 +3,4 @@ void test() {
   if (x) {
     return;
   }
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/cppcoreguidelines-narrowing-conversions.cpp b/tools/clang-tidy/test/cppcoreguidelines-narrowing-conversions.cpp
index b10b0fa1c3a4..0769520f9d04 100644
--- a/tools/clang-tidy/test/cppcoreguidelines-narrowing-conversions.cpp
+++ b/tools/clang-tidy/test/cppcoreguidelines-narrowing-conversions.cpp
@@ -1,4 +1,4 @@
 class Foo {
   int f;
   void a_f(double val) { f = val;}
-};
+};
\ No newline at end of file
diff --git a/tools/clang-tidy/test/misc-non-copyable-objects.cpp b/tools/clang-tidy/test/misc-non-copyable-objects.cpp
index 2f9060a81866..ce806531dd0e 100644
--- a/tools/clang-tidy/test/misc-non-copyable-objects.cpp
+++ b/tools/clang-tidy/test/misc-non-copyable-objects.cpp
@@ -2,4 +2,4 @@ namespace std {
 typedef struct FILE {} FILE;
 }
 
-void g(std::FILE f);
+void g(std::FILE f);
\ No newline at end of file
diff --git a/tools/clang-tidy/test/misc-redundant-expression.cpp b/tools/clang-tidy/test/misc-redundant-expression.cpp
index 0ccc9c55f76d..bfc893f5bed0 100644
--- a/tools/clang-tidy/test/misc-redundant-expression.cpp
+++ b/tools/clang-tidy/test/misc-redundant-expression.cpp
@@ -1,3 +1,3 @@
 int TestSimpleEquivalent(int X, int Y) {
   if (X - X) return 1;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/modernize-deprecated-ios-base-aliases.cpp b/tools/clang-tidy/test/modernize-deprecated-ios-base-aliases.cpp
index 288fac8483db..e8829d70ff96 100644
--- a/tools/clang-tidy/test/modernize-deprecated-ios-base-aliases.cpp
+++ b/tools/clang-tidy/test/modernize-deprecated-ios-base-aliases.cpp
@@ -15,4 +15,4 @@ class basic_ios : public ios_base {
 } // namespace std
 
 // Test function return values (declaration)
-std::ios_base::io_state f_5();
+std::ios_base::io_state f_5();
\ No newline at end of file
diff --git a/tools/clang-tidy/test/modernize-use-auto.cpp b/tools/clang-tidy/test/modernize-use-auto.cpp
index ba54d0cb8a25..7e47c96535ae 100644
--- a/tools/clang-tidy/test/modernize-use-auto.cpp
+++ b/tools/clang-tidy/test/modernize-use-auto.cpp
@@ -8,4 +8,4 @@ void func() {
        I != E;
        ++I) {
   }
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/modernize-use-bool-literals.cpp b/tools/clang-tidy/test/modernize-use-bool-literals.cpp
index 58b7ec8f29a0..284e8c34872a 100644
--- a/tools/clang-tidy/test/modernize-use-bool-literals.cpp
+++ b/tools/clang-tidy/test/modernize-use-bool-literals.cpp
@@ -2,4 +2,4 @@ void foo() {
   bool p = 1;
   bool f = static_cast<bool>(1);
   bool x = p ? 1 : 0;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/modernize-use-override.cpp b/tools/clang-tidy/test/modernize-use-override.cpp
index 1cbec3868c5e..84214a55eceb 100644
--- a/tools/clang-tidy/test/modernize-use-override.cpp
+++ b/tools/clang-tidy/test/modernize-use-override.cpp
@@ -5,4 +5,4 @@ public:
 
 class Deriv : public Base {
   void foo();
-};
+};
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-faster-string-find.cpp b/tools/clang-tidy/test/performance-faster-string-find.cpp
index d7ac3d0c3cf5..75d7d0201dc1 100644
--- a/tools/clang-tidy/test/performance-faster-string-find.cpp
+++ b/tools/clang-tidy/test/performance-faster-string-find.cpp
@@ -3,4 +3,4 @@
 void foo() {
   std::string str;
   str.find("A");
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-for-range-copy.cpp b/tools/clang-tidy/test/performance-for-range-copy.cpp
index 264dd42896e3..879f0f9682c2 100644
--- a/tools/clang-tidy/test/performance-for-range-copy.cpp
+++ b/tools/clang-tidy/test/performance-for-range-copy.cpp
@@ -27,4 +27,4 @@ struct S {
 void negativeConstReference() {
   for (const S S1 : View<Iterator<S>>()) {
   }
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-inefficient-string-concatenation.cpp b/tools/clang-tidy/test/performance-inefficient-string-concatenation.cpp
index 5a5860f2154e..cb0248d57220 100644
--- a/tools/clang-tidy/test/performance-inefficient-string-concatenation.cpp
+++ b/tools/clang-tidy/test/performance-inefficient-string-concatenation.cpp
@@ -10,4 +10,4 @@ void foo() {
   for (int i = 0; i < 10; ++i) {
     fstring(mystr1 + mystr2 + mystr1);
   }
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-inefficient-vector-operation.cpp b/tools/clang-tidy/test/performance-inefficient-vector-operation.cpp
index 4f0e143aa291..66f37407052d 100644
--- a/tools/clang-tidy/test/performance-inefficient-vector-operation.cpp
+++ b/tools/clang-tidy/test/performance-inefficient-vector-operation.cpp
@@ -7,4 +7,4 @@ void foo()
   for (int i = 0; i < n; ++i) {
     v.push_back(n);
   }
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-move-const-arg.cpp b/tools/clang-tidy/test/performance-move-const-arg.cpp
index 39f1ce06ec67..2ffff7858e86 100644
--- a/tools/clang-tidy/test/performance-move-const-arg.cpp
+++ b/tools/clang-tidy/test/performance-move-const-arg.cpp
@@ -30,4 +30,4 @@ void g() {
 
 A f5(const A x5) {
   return std::move(x5);
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-type-promotion-in-math-fn.cpp b/tools/clang-tidy/test/performance-type-promotion-in-math-fn.cpp
index 9a6fcf9848d6..4f239abddfcb 100644
--- a/tools/clang-tidy/test/performance-type-promotion-in-math-fn.cpp
+++ b/tools/clang-tidy/test/performance-type-promotion-in-math-fn.cpp
@@ -4,4 +4,4 @@ void check_all_fns()
 {
   float a;
   acos(a);
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-unnecessary-copy-initialization.cpp b/tools/clang-tidy/test/performance-unnecessary-copy-initialization.cpp
index ca0f591a3e8d..cfaed516672a 100644
--- a/tools/clang-tidy/test/performance-unnecessary-copy-initialization.cpp
+++ b/tools/clang-tidy/test/performance-unnecessary-copy-initialization.cpp
@@ -4,4 +4,4 @@ extern const std::string& constReference();
 
 void foo() {
   const std::string UnnecessaryCopy = constReference();
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/performance-unnecessary-value-param.cpp b/tools/clang-tidy/test/performance-unnecessary-value-param.cpp
index ed5f36f7fa9c..7cdfd8bd8934 100644
--- a/tools/clang-tidy/test/performance-unnecessary-value-param.cpp
+++ b/tools/clang-tidy/test/performance-unnecessary-value-param.cpp
@@ -1,4 +1,4 @@
 #include "structures.h"
 
 void f(const std::string Value) {
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-const-return-type.cpp b/tools/clang-tidy/test/readability-const-return-type.cpp
index 695ed1d83fa1..dfd60310f2af 100644
--- a/tools/clang-tidy/test/readability-const-return-type.cpp
+++ b/tools/clang-tidy/test/readability-const-return-type.cpp
@@ -2,4 +2,4 @@ const int p1() {
 // CHECK-MESSAGES: [[@LINE-1]]:1: warning: return type 'const int' is 'const'-qualified at the top level, which may reduce code readability without improving const correctness
 // CHECK-FIXES: int p1() {
   return 1;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-container-size-empty.cpp b/tools/clang-tidy/test/readability-container-size-empty.cpp
index 1dcfe68bd7e0..f08fde01e297 100644
--- a/tools/clang-tidy/test/readability-container-size-empty.cpp
+++ b/tools/clang-tidy/test/readability-container-size-empty.cpp
@@ -4,4 +4,4 @@ void foo() {
   std::string a;
   if (a.size())
     return;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-delete-null-pointer.cpp b/tools/clang-tidy/test/readability-delete-null-pointer.cpp
index e08340404350..3f5ec5eeb12e 100644
--- a/tools/clang-tidy/test/readability-delete-null-pointer.cpp
+++ b/tools/clang-tidy/test/readability-delete-null-pointer.cpp
@@ -3,4 +3,4 @@ void func() {
   if (f) {
     delete f;
   }
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-else-after-return.cpp b/tools/clang-tidy/test/readability-else-after-return.cpp
index 2c72b68a92f4..7bd09832db44 100644
--- a/tools/clang-tidy/test/readability-else-after-return.cpp
+++ b/tools/clang-tidy/test/readability-else-after-return.cpp
@@ -7,4 +7,4 @@ void foo() {
     return;
   else
     f();
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-inconsistent-declaration-parameter-name.cpp b/tools/clang-tidy/test/readability-inconsistent-declaration-parameter-name.cpp
index acf13b240b7a..19e16a7d34ca 100644
--- a/tools/clang-tidy/test/readability-inconsistent-declaration-parameter-name.cpp
+++ b/tools/clang-tidy/test/readability-inconsistent-declaration-parameter-name.cpp
@@ -3,4 +3,4 @@ struct S {
 };
 
 void S::f(int y) {
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-isolate-declaration.cpp b/tools/clang-tidy/test/readability-isolate-declaration.cpp
index 5d64e0171fdd..cbeeb7b6ba4f 100644
--- a/tools/clang-tidy/test/readability-isolate-declaration.cpp
+++ b/tools/clang-tidy/test/readability-isolate-declaration.cpp
@@ -4,4 +4,4 @@ void f() {
   // int * pointer = nullptr;
   // int value = 42;
   // int * const const_ptr = &value;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-magic-numbers.cpp b/tools/clang-tidy/test/readability-magic-numbers.cpp
index 430fa1705623..4eb6b05d56ba 100644
--- a/tools/clang-tidy/test/readability-magic-numbers.cpp
+++ b/tools/clang-tidy/test/readability-magic-numbers.cpp
@@ -1,4 +1,4 @@
 void func() {
   int radius = 2;
   double circleArea = 3.1415926535 * radius * radius;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-non-const-parameter.cpp b/tools/clang-tidy/test/readability-non-const-parameter.cpp
index 5a0ffd0e302f..ec40d19ae343 100644
--- a/tools/clang-tidy/test/readability-non-const-parameter.cpp
+++ b/tools/clang-tidy/test/readability-non-const-parameter.cpp
@@ -2,4 +2,4 @@ void warn1(int *first, int *last) {
   *first = 0;
   if (first < last) {
   }
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-qualified-auto.cpp b/tools/clang-tidy/test/readability-qualified-auto.cpp
index 03c5164e2ce1..9407e9b3ad6a 100644
--- a/tools/clang-tidy/test/readability-qualified-auto.cpp
+++ b/tools/clang-tidy/test/readability-qualified-auto.cpp
@@ -3,4 +3,4 @@ MyPtr getPtr();
 
 void foo() {
   auto TdNakedPtr = getPtr();
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-redundant-control-flow.cpp b/tools/clang-tidy/test/readability-redundant-control-flow.cpp
index d22171554204..281088162ca5 100644
--- a/tools/clang-tidy/test/readability-redundant-control-flow.cpp
+++ b/tools/clang-tidy/test/readability-redundant-control-flow.cpp
@@ -2,4 +2,4 @@ extern void g();
 void f() {
   g();
   return;
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-redundant-preprocessor.cpp b/tools/clang-tidy/test/readability-redundant-preprocessor.cpp
index 317905dab828..6791210ab391 100644
--- a/tools/clang-tidy/test/readability-redundant-preprocessor.cpp
+++ b/tools/clang-tidy/test/readability-redundant-preprocessor.cpp
@@ -2,4 +2,4 @@
 #ifdef FOO // inner ifdef is considered redundant
 void f();
 #endif
-#endif
+#endif
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-redundant-string-cstr.cpp b/tools/clang-tidy/test/readability-redundant-string-cstr.cpp
index d35a2998e5b5..ea01041224d9 100644
--- a/tools/clang-tidy/test/readability-redundant-string-cstr.cpp
+++ b/tools/clang-tidy/test/readability-redundant-string-cstr.cpp
@@ -4,4 +4,4 @@ void foo() {
   std::string a = "Mozilla";
   std::string tmp;
   tmp.assign(a.c_str());
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-redundant-string-init.cpp b/tools/clang-tidy/test/readability-redundant-string-init.cpp
index 39bae4bd56e5..4badcf590c92 100644
--- a/tools/clang-tidy/test/readability-redundant-string-init.cpp
+++ b/tools/clang-tidy/test/readability-redundant-string-init.cpp
@@ -2,4 +2,4 @@
 
 int foo() {
   std::string a = "";
-}
+}
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-simplify-boolean-expr.cpp b/tools/clang-tidy/test/readability-simplify-boolean-expr.cpp
index 277a469880e8..aab9b3a36f5a 100644
--- a/tools/clang-tidy/test/readability-simplify-boolean-expr.cpp
+++ b/tools/clang-tidy/test/readability-simplify-boolean-expr.cpp
@@ -1,2 +1,2 @@
 bool a1 = false;
-bool aa = false == a1;
+bool aa = false == a1;
\ No newline at end of file
diff --git a/tools/clang-tidy/test/readability-uniqueptr-delete-release.cpp b/tools/clang-tidy/test/readability-uniqueptr-delete-release.cpp
index 4fce9cde4eec..f7af91329d91 100644
--- a/tools/clang-tidy/test/readability-uniqueptr-delete-release.cpp
+++ b/tools/clang-tidy/test/readability-uniqueptr-delete-release.cpp
@@ -3,4 +3,4 @@
 int foo() {
   std::unique_ptr<int> P;
   delete P.release();
-}
+}
\ No newline at end of file
diff --git a/tools/infer/test/gradle/wrapper/gradle-wrapper.properties b/tools/infer/test/gradle/wrapper/gradle-wrapper.properties
index f8ad342f5966..6dea7f74039b 100644
--- a/tools/infer/test/gradle/wrapper/gradle-wrapper.properties
+++ b/tools/infer/test/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
 distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
-distributionSha256Sum=7a2c66d1a78f811d5f37d14630ad21cec5e77a2a4dc61e787e2257a6341016ce
+distributionSha256Sum=7a2c66d1a78f811d5f37d14630ad21cec5e77a2a4dc61e787e2257a6341016ce
\ No newline at end of file
diff --git a/tools/profiler/core/VTuneProfiler.cpp b/tools/profiler/core/VTuneProfiler.cpp
index 58a39c51eeff..9f028fa86e19 100644
--- a/tools/profiler/core/VTuneProfiler.cpp
+++ b/tools/profiler/core/VTuneProfiler.cpp
@@ -77,4 +77,4 @@ void VTuneProfiler::RegisterThreadInternal(const char* aName) {
     return;
   }
   __itt_thread_set_name(aName);
-}
+}
\ No newline at end of file
diff --git a/widget/IconLoader.cpp b/widget/IconLoader.cpp
index 6da82caa7057..174b9a830fdb 100644
--- a/widget/IconLoader.cpp
+++ b/widget/IconLoader.cpp
@@ -178,4 +178,4 @@ nsresult IconLoader::OnFrameComplete(imgIRequest* aRequest) {
   return NS_OK;
 }
 
-}  // namespace mozilla::widget
+}  // namespace mozilla::widget
\ No newline at end of file
diff --git a/widget/windows/RemoteBackbuffer.h b/widget/windows/RemoteBackbuffer.h
index 038078d4cd7c..c9857c73d8fd 100644
--- a/widget/windows/RemoteBackbuffer.h
+++ b/widget/windows/RemoteBackbuffer.h
@@ -89,4 +89,4 @@ class Client {
 }  // namespace widget
 }  // namespace mozilla
 
-#endif  // widget_windows_RemoteBackbuffer_h
+#endif  // widget_windows_RemoteBackbuffer_h
\ No newline at end of file
diff --git a/widget/windows/SystemStatusBar.h b/widget/windows/SystemStatusBar.h
index 6c90fc0097dc..d0535137d936 100644
--- a/widget/windows/SystemStatusBar.h
+++ b/widget/windows/SystemStatusBar.h
@@ -29,4 +29,4 @@ class SystemStatusBar final : public nsISystemStatusBar {
 
 }  // namespace mozilla::widget
 
-#endif  // widget_windows_SystemStatusBar_h
+#endif  // widget_windows_SystemStatusBar_h
\ No newline at end of file
diff --git a/widget/windows/WinContentSystemParameters.cpp b/widget/windows/WinContentSystemParameters.cpp
index f15e9aa0cccb..c116612573d3 100644
--- a/widget/windows/WinContentSystemParameters.cpp
+++ b/widget/windows/WinContentSystemParameters.cpp
@@ -210,4 +210,4 @@ void WinContentSystemParameters::SetCachedValueValid(SystemParameterId aId,
 }
 
 }  // namespace widget
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/widget/windows/WinContentSystemParameters.h b/widget/windows/WinContentSystemParameters.h
index daa7db2115de..adb958d1d8db 100644
--- a/widget/windows/WinContentSystemParameters.h
+++ b/widget/windows/WinContentSystemParameters.h
@@ -69,4 +69,4 @@ class WinContentSystemParameters {
 }  // namespace widget
 }  // namespace mozilla
 
-#endif  // mozilla_widget_WinContentSystemParameters_h
+#endif  // mozilla_widget_WinContentSystemParameters_h
\ No newline at end of file
diff --git a/widget/windows/WindowsEMF.h b/widget/windows/WindowsEMF.h
index 3a7a20173c01..9be9d27ec4cf 100644
--- a/widget/windows/WindowsEMF.h
+++ b/widget/windows/WindowsEMF.h
@@ -103,4 +103,4 @@ class WindowsEMF {
 }  // namespace widget
 }  // namespace mozilla
 
-#endif /* MOZILLA_WIDGET_WINDOWSEMF_H */
+#endif /* MOZILLA_WIDGET_WINDOWSEMF_H */
\ No newline at end of file
diff --git a/widget/windows/nsUXThemeData.cpp b/widget/windows/nsUXThemeData.cpp
index b0e34deb6c2e..57defdaa5444 100644
--- a/widget/windows/nsUXThemeData.cpp
+++ b/widget/windows/nsUXThemeData.cpp
@@ -407,4 +407,4 @@ bool nsUXThemeData::IsAppThemed() {
     return WinContentSystemParameters::GetSingleton()->IsAppThemed();
   }
   return !!::IsAppThemed();
-}
+}
\ No newline at end of file
diff --git a/widget/windows/touchinjection_sdk80.h b/widget/windows/touchinjection_sdk80.h
index e2eeceb15b15..65c45eb2e8dc 100644
--- a/widget/windows/touchinjection_sdk80.h
+++ b/widget/windows/touchinjection_sdk80.h
@@ -114,4 +114,4 @@ typedef BOOL(WINAPI* InitializeTouchInjectionPtr)(UINT32 maxCount,
 typedef BOOL(WINAPI* InjectTouchInputPtr)(UINT32 count,
                                           CONST POINTER_TOUCH_INFO* info);
 
-#endif  // touchinjection_sdk80_h
+#endif  // touchinjection_sdk80_h
\ No newline at end of file
diff --git a/xpcom/base/LogCommandLineHandler.cpp b/xpcom/base/LogCommandLineHandler.cpp
index 26e78670e991..7bb149ce5b9c 100644
--- a/xpcom/base/LogCommandLineHandler.cpp
+++ b/xpcom/base/LogCommandLineHandler.cpp
@@ -87,4 +87,4 @@ void LoggingHandleCommandLineArgs(
   }
 }
 
-}  // namespace mozilla
+}  // namespace mozilla
\ No newline at end of file
diff --git a/xpcom/base/ShutdownPhase.h b/xpcom/base/ShutdownPhase.h
index 04b891e13d88..9042efef30e0 100644
--- a/xpcom/base/ShutdownPhase.h
+++ b/xpcom/base/ShutdownPhase.h
@@ -25,4 +25,4 @@ enum class ShutdownPhase {
 
 }  // namespace mozilla
 
-#endif  // ShutdownPhase_h
+#endif  // ShutdownPhase_h
\ No newline at end of file
diff --git a/xpcom/string/nsTSubstringTuple.cpp b/xpcom/string/nsTSubstringTuple.cpp
index 2521799f750b..4f9383f36012 100644
--- a/xpcom/string/nsTSubstringTuple.cpp
+++ b/xpcom/string/nsTSubstringTuple.cpp
@@ -89,4 +89,4 @@ auto nsTSubstringTuple<T>::IsDependentOnWithLength(const char_type* aStart,
 }
 
 template class nsTSubstringTuple<char>;
-template class nsTSubstringTuple<char16_t>;
+template class nsTSubstringTuple<char16_t>;
\ No newline at end of file
