diff --git a/browser/devtools/netmonitor/test/browser_net_copy_as_curl.js b/browser/devtools/netmonitor/test/browser_net_copy_as_curl.js
index 6cff1456f6d4..e67f67326c87 100644
--- a/browser/devtools/netmonitor/test/browser_net_copy_as_curl.js
+++ b/browser/devtools/netmonitor/test/browser_net_copy_as_curl.js
@@ -16,7 +16,7 @@ function test() {
       "-H 'User-Agent: " + aDebuggee.navigator.userAgent + "'",
       "-H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'",
       "-H 'Accept-Language: " + aDebuggee.navigator.language + "'",
-      "-H 'Accept-Encoding: gzip, deflate'",
+      "--compressed",
       "-H 'X-Custom-Header-1: Custom value'",
       "-H 'X-Custom-Header-2: 8.8.8.8'",
       "-H 'X-Custom-Header-3: Mon, 3 Mar 2014 11:11:11 GMT'",
@@ -31,7 +31,7 @@ function test() {
       '-H "User-Agent: ' + aDebuggee.navigator.userAgent + '"',
       '-H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"',
       '-H "Accept-Language: ' + aDebuggee.navigator.language + '"',
-      '-H "Accept-Encoding: gzip, deflate"',
+      "--compressed",
       '-H "X-Custom-Header-1: Custom value"',
       '-H "X-Custom-Header-2: 8.8.8.8"',
       '-H "X-Custom-Header-3: Mon, 3 Mar 2014 11:11:11 GMT"',
diff --git a/browser/devtools/shared/Curl.jsm b/browser/devtools/shared/Curl.jsm
index 615c3fc0662c..dc7fd37fc539 100644
--- a/browser/devtools/shared/Curl.jsm
+++ b/browser/devtools/shared/Curl.jsm
@@ -120,6 +120,10 @@ this.Curl = {
     }
     for (let i = 0; i < headers.length; i++) {
       let header = headers[i];
+      if (header.name === "Accept-Encoding"){
+        command.push("--compressed");
+        continue;
+      }
       if (ignoredHeaders.has(header.name)) {
         continue;
       }