Issue 6050 - Use localStorage for blocked_total preference on Gecko

lib/prefs.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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 298 matching lines @@
     ext.storage.get(prefs.map(prefToKey), items =>
     {
       for (let key in items)
         overrides[keyToPref(key)] = items[key];
 
       if (require("info").platform == "gecko")
       {
         let blockedTotal = window.localStorage.getItem("blocked_total");
         if (typeof blockedTotal == "string")
         {
-          blockedTotal = JSON.parse(blockedTotal);
+          blockedTotal = parseInt(blockedTotal, 10);
           if (blockedTotal > overrides.blocked_total)
           {
             overrides.blocked_total = blockedTotal;
             savePref("blocked_total");
           }
         }
       }
 
       resolve();
     });
@@ skipping 41 matching lines @@
           eventEmitter.emit(pref);
         }
       }
     });
   }
 
   Prefs.untilLoaded = Promise.all([localLoaded, managedLoaded]).then(onLoaded);
 }
 
 init();