diff --git a/devtools/client/netmonitor/test/browser_net_filter-flags.js b/devtools/client/netmonitor/test/browser_net_filter-flags.js
index 0c0120e6d18b..a7337e064536 100644
--- a/devtools/client/netmonitor/test/browser_net_filter-flags.js
+++ b/devtools/client/netmonitor/test/browser_net_filter-flags.js
@@ -8,6 +8,8 @@
  */
 const REQUESTS = [
   { url: "sjs_content-type-test-server.sjs?fmt=html&res=undefined&text=Sample" },
+  { url: "sjs_content-type-test-server.sjs?fmt=html&res=undefined&text=Sample" +
+         "&cookies=1" },
   { url: "sjs_content-type-test-server.sjs?fmt=css&text=sample" },
   { url: "sjs_content-type-test-server.sjs?fmt=js&text=sample" },
   { url: "sjs_content-type-test-server.sjs?fmt=font" },
@@ -29,6 +31,17 @@ const EXPECTED_REQUESTS = [
       fullMimeType: "text/html; charset=utf-8"
     }
   },
+  {
+    method: "GET",
+    url: CONTENT_TYPE_SJS + "?fmt=html",
+    data: {
+      fuzzyUrl: true,
+      status: 200,
+      statusText: "OK",
+      type: "html",
+      fullMimeType: "text/html; charset=utf-8"
+    }
+  },
   {
     method: "GET",
     url: CONTENT_TYPE_SJS + "?fmt=css",
@@ -125,67 +138,91 @@ add_task(function* () {
 
   info("Starting test... ");
 
-  let waitNetwork = waitForNetworkEvents(monitor, 8);
+  let waitNetwork = waitForNetworkEvents(monitor, REQUESTS.length);
   loadCommonFrameScript();
   yield performRequestsInContent(REQUESTS);
   yield waitNetwork;
 
   // Test running flag once requests finish running
   setFreetextFilter("is:running");
-  testContents([0, 0, 0, 0, 0, 0, 0, 0]);
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 0]);
 
   // Test cached flag
   setFreetextFilter("is:from-cache");
-  testContents([0, 0, 0, 0, 0, 0, 0, 1]);
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 1]);
 
   setFreetextFilter("is:cached");
-  testContents([0, 0, 0, 0, 0, 0, 0, 1]);
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 1]);
 
   // Test negative cached flag
   setFreetextFilter("-is:from-cache");
-  testContents([1, 1, 1, 1, 1, 1, 1, 0]);
+  testContents([1, 1, 1, 1, 1, 1, 1, 1, 0]);
 
   setFreetextFilter("-is:cached");
-  testContents([1, 1, 1, 1, 1, 1, 1, 0]);
+  testContents([1, 1, 1, 1, 1, 1, 1, 1, 0]);
 
   // Test status-code flag
   setFreetextFilter("status-code:200");
-  testContents([1, 1, 1, 1, 1, 1, 1, 0]);
+  testContents([1, 1, 1, 1, 1, 1, 1, 1, 0]);
 
   // Test status-code negative flag
   setFreetextFilter("-status-code:200");
-  testContents([0, 0, 0, 0, 0, 0, 0, 1]);
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 1]);
 
   // Test mime-type flag
   setFreetextFilter("mime-type:HtmL");
-  testContents([1, 0, 0, 0, 0, 0, 0, 0]);
+  testContents([1, 1, 0, 0, 0, 0, 0, 0, 0]);
 
   // Test mime-type negative flag
   setFreetextFilter("-mime-type:HtmL");
-  testContents([0, 1, 1, 1, 1, 1, 1, 1]);
+  testContents([0, 0, 1, 1, 1, 1, 1, 1, 1]);
 
   // Test method flag
   setFreetextFilter("method:get");
-  testContents([1, 1, 1, 1, 1, 1, 1, 1]);
+  testContents([1, 1, 1, 1, 1, 1, 1, 1, 1]);
 
   // Test unmatched method flag
   setFreetextFilter("method:post");
-  testContents([0, 0, 0, 0, 0, 0, 0, 0]);
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 0]);
 
   // Test scheme flag (all requests are http)
   setFreetextFilter("scheme:http");
-  testContents([1, 1, 1, 1, 1, 1, 1, 1]);
+  testContents([1, 1, 1, 1, 1, 1, 1, 1, 1]);
 
   setFreetextFilter("scheme:https");
-  testContents([0, 0, 0, 0, 0, 0, 0, 0]);
-
-  // Test mixing flags
-  setFreetextFilter("-mime-type:HtmL status-code:200");
-  testContents([0, 1, 1, 1, 1, 1, 1, 0]);
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 0]);
 
   // Test regex filter
   setFreetextFilter("regexp:content.*?Sam");
-  testContents([1, 0, 0, 0, 0, 0, 0, 0]);
+  testContents([1, 1, 0, 0, 0, 0, 0, 0, 0]);
+
+  // Test set-cookie-name flag
+  setFreetextFilter("set-cookie-name:name2");
+  testContents([0, 1, 0, 0, 0, 0, 0, 0, 0]);
+
+  setFreetextFilter("set-cookie-name:not-existing");
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 0]);
+
+  // Test set-cookie-value flag
+  setFreetextFilter("set-cookie-value:value2");
+  testContents([0, 1, 0, 0, 0, 0, 0, 0, 0]);
+
+  setFreetextFilter("set-cookie-value:not-existing");
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 0]);
+
+  // Test set-cookie-domain flag
+  setFreetextFilter("set-cookie-domain:.example.com");
+  testContents([0, 1, 0, 0, 0, 0, 0, 0, 0]);
+
+  setFreetextFilter("set-cookie-domain:.foo.example.com");
+  testContents([0, 1, 0, 0, 0, 0, 0, 0, 0]);
+
+  setFreetextFilter("set-cookie-domain:.not-existing.example.com");
+  testContents([0, 0, 0, 0, 0, 0, 0, 0, 0]);
+
+  // Test mixing flags
+  setFreetextFilter("-mime-type:HtmL status-code:200");
+  testContents([0, 0, 1, 1, 1, 1, 1, 1, 0]);
 
   yield teardown(monitor);
 
diff --git a/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs b/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs
index a0c166e32445..7e296c2dfb44 100644
--- a/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs
+++ b/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs
@@ -36,6 +36,7 @@ function handleRequest(request, response) {
   let params = request.queryString.split("&");
   let format = (params.filter((s) => s.includes("fmt="))[0] || "").split("=")[1];
   let status = (params.filter((s) => s.includes("sts="))[0] || "").split("=")[1] || 200;
+  let cookies = (params.filter((s) => s.includes("cookies="))[0] || "").split("=")[1] || 0;
 
   let cachedCount = 0;
   let cacheExpire = 60; // seconds
@@ -56,6 +57,13 @@ function handleRequest(request, response) {
     cachedCount++;
   }
 
+  function setCookieHeaders() {
+    if (cookies) {
+      response.setHeader("Set-Cookie", "name1=value1; Domain=.foo.example.com", true);
+      response.setHeader("Set-Cookie", "name2=value2; Domain=.example.com", true);
+    }
+  }
+
   let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
   timer.initWithCallback(() => {
     // to avoid garbage collection
@@ -82,6 +90,7 @@ function handleRequest(request, response) {
         response.setStatusLine(request.httpVersion, status, "OK");
         response.setHeader("Content-Type", "text/html; charset=utf-8", false);
         setCacheHeaders();
+        setCookieHeaders();
         response.write(content || "<p>Hello HTML!</p>");
         response.finish();
         break;