Be more selective for the sharing fallback

chrome/content/ui/firstRun.js

Index: chrome/content/ui/firstRun.js
===================================================================
--- a/chrome/content/ui/firstRun.js
+++ b/chrome/content/ui/firstRun.js
@@ -207,17 +207,18 @@
     {
       var link = E("share-" + network);
       link.addEventListener("click", onSocialLinkClick, false);
     });
   }
 
   function onSocialLinkClick(event)
   {
-    var filter = defaultMatcher.matchesAny("https://platform.twitter.com/widgets.js", "SCRIPT", "adblockplus.org", true);
+    // Don't open the share page if the sharing script would be blocked
+    var filter = defaultMatcher.matchesAny(event.target.getAttribute("_script"), "SCRIPT", "adblockplus.org", true);

[Thomas Greiner, 2013/07/08 13:46:47]

_script is not a standard attribute for anchor tags. Please use data-script
instead.

     if (!(filter instanceof BlockingFilter))
     {
       event.preventDefault();
       openSharePopup(Utils.getDocLink(event.target.id));
     }
   }
 
   function setLinks(id)