Issue 2018 - Optimized first-run page for smaller screens

firstRun.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 137 matching lines @@
         if (isBlocked)
           link.removeEventListener("click", onSocialLinkClick, false);
         else
           link.addEventListener("click", onSocialLinkClick, false);
       });
     });
   }
 
   function onSocialLinkClick(event)
   {
+    if (window.matchMedia("(max-width: 970px)").matches)
+      return;
+
     event.preventDefault();
 
     getDocLink(event.target.id, function(link)
     {
       openSharePopup(link);
     });
   }
 
   function setLinks(id)
   {
@@ skipping 48 matching lines @@
   {
     var button = E("toggle-" + feature);
     if (isEnabled)
       button.classList.remove("off");
     else
       button.classList.add("off");
   }
 
   document.addEventListener("DOMContentLoaded", onDOMLoaded, false);
 })();