diff --git a/dom/html/test/forms/test_input_file_picker.html b/dom/html/test/forms/test_input_file_picker.html
index f59c9e759c87..296c12bb7e46 100644
--- a/dom/html/test/forms/test_input_file_picker.html
+++ b/dom/html/test/forms/test_input_file_picker.html
@@ -81,7 +81,7 @@ var MockFilePicker = SpecialPowers.MockFilePicker;
 MockFilePicker.init(window);
 
 // The following lists are from toolkit/content/filepicker.properties which is used by filePicker
-var imageExtensionList = "*.jpe; *.jpg; *.jpeg; *.gif; *.png; *.bmp; *.ico; *.svg; *.svgz; *.tif; *.tiff; *.ai; *.drw; *.pct; *.psp; *.xcf; *.psd; *.raw; *.webp"
+var imageExtensionList = "*.jpe; *.jpg; *.jpeg; *.gif; *.png; *.bmp; *.ico; *.svg; *.svgz; *.tif; *.tiff; *.ai; *.drw; *.pct; *.psp; *.xcf; *.psd; *.raw; *.webp; *.heic"
 
 var audioExtensionList = "*.aac; *.aif; *.flac; *.iff; *.m4a; *.m4b; *.mid; *.midi; *.mp3; *.mpa; *.mpc; *.oga; *.ogg; *.opus; *.ra; *.ram; *.snd; *.wav; *.wma"
 
diff --git a/toolkit/components/extensions/parent/ext-downloads.js b/toolkit/components/extensions/parent/ext-downloads.js
index 7a93c834dd9c..9cd96e0d65fa 100644
--- a/toolkit/components/extensions/parent/ext-downloads.js
+++ b/toolkit/components/extensions/parent/ext-downloads.js
@@ -103,6 +103,7 @@ const FILTER_IMAGES_EXTENSIONS = [
   "psd",
   "raw",
   "webp",
+  "heic",
 ];
 
 const FILTER_XML_EXTENSIONS = ["xml"];
diff --git a/toolkit/components/extensions/test/browser/browser_ext_downloads_filters.js b/toolkit/components/extensions/test/browser/browser_ext_downloads_filters.js
index c273d4bef0ce..48dd6b88eed2 100644
--- a/toolkit/components/extensions/test/browser/browser_ext_downloads_filters.js
+++ b/toolkit/components/extensions/test/browser/browser_ext_downloads_filters.js
@@ -106,6 +106,10 @@ add_task(async function testDownload_webp_Images() {
   await testAppliedFilters(".webp", Ci.nsIFilePicker.filterImages, 2);
 });
 
+add_task(async function testDownload_heic_Images() {
+  await testAppliedFilters(".heic", Ci.nsIFilePicker.filterImages, 2);
+});
+
 add_task(async function testDownload_xml_XML() {
   await testAppliedFilters(".xml", Ci.nsIFilePicker.filterXML, 2);
 });
diff --git a/toolkit/content/filepicker.properties b/toolkit/content/filepicker.properties
index 5717dbbed052..03daec114c28 100644
--- a/toolkit/content/filepicker.properties
+++ b/toolkit/content/filepicker.properties
@@ -5,7 +5,7 @@
 allFilter=*
 htmlFilter=*.html; *.htm; *.shtml; *.xhtml
 textFilter=*.txt; *.text
-imageFilter=*.jpe; *.jpg; *.jpeg; *.gif; *.png; *.bmp; *.ico; *.svg; *.svgz; *.tif; *.tiff; *.ai; *.drw; *.pct; *.psp; *.xcf; *.psd; *.raw; *.webp
+imageFilter=*.jpe; *.jpg; *.jpeg; *.gif; *.png; *.bmp; *.ico; *.svg; *.svgz; *.tif; *.tiff; *.ai; *.drw; *.pct; *.psp; *.xcf; *.psd; *.raw; *.webp; *.heic
 xmlFilter=*.xml
 xulFilter=*.xul
 audioFilter=*.aac; *.aif; *.flac; *.iff; *.m4a; *.m4b; *.mid; *.midi; *.mp3; *.mpa; *.mpc; *.oga; *.ogg; *.opus; *.ra; *.ram; *.snd; *.wav; *.wma
diff --git a/widget/nsIFilePicker.idl b/widget/nsIFilePicker.idl
index 4854a6d4a1ad..c64a4de4a043 100644
--- a/widget/nsIFilePicker.idl
+++ b/widget/nsIFilePicker.idl
@@ -37,7 +37,7 @@ interface nsIFilePicker : nsISupports
                                                 // *.png; *.bmp; *.ico; *.svg;
                                                 // *.svgz; *.tif; *.tiff; *.ai;
                                                 // *.drw; *.pct; *.psp; *.xcf;
-                                                // *.psd; *.raw; *.webp
+                                                // *.psd; *.raw; *.webp; *.heic
   const long filterXML        = 0x010;          // *.xml
   const long filterXUL        = 0x020;          // *.xul
   const long filterApps       = 0x040;          // Applications (per-platform implementation)