Bug 804437 - Don't copy user.js section when it's hidden. r=Unfocused

toolkit/content/aboutSupport.js

@@ -186,6 +186,8 @@ let snapshotFormatters = {
     userJSFile.append("user.js");
     $("prefs-user-js-link").href = Services.io.newFileURI(userJSFile).spec;
     $("prefs-user-js-section").style.display = "";
+    // Clear the no-copy class
+    $("prefs-user-js-section").className = "";
   },
 };
 

toolkit/content/aboutSupport.xhtml

@@ -209,7 +209,7 @@
         </tbody>
       </table>
 
-      <section id="prefs-user-js-section" style="display:none">
+      <section id="prefs-user-js-section" class="no-copy" style="display:none">
         <h3>&aboutSupport.userJSTitle;</h3>
         <p>&aboutSupport.userJSDescription;</p>
       </section>