Issue 5760 - Use relative require paths

lib/firefoxDataCleanup.js

Index: lib/firefoxDataCleanup.js
===================================================================
--- a/lib/firefoxDataCleanup.js
+++ b/lib/firefoxDataCleanup.js
@@ -12,21 +12,22 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
-const {Filter, ActiveFilter} = require("filterClasses");
-const {FilterNotifier} = require("filterNotifier");
-const {FilterStorage} = require("filterStorage");
-const {Prefs} = require("prefs");
-const {SpecialSubscription} = require("subscriptionClasses");
+const {Filter, ActiveFilter} = require("../adblockpluscore/lib/filterClasses");
+const {FilterNotifier} = require("../adblockpluscore/lib/filterNotifier");
+const {FilterStorage} = require("../adblockpluscore/lib/filterStorage");
+const {Prefs} = require("./prefs");
+const {SpecialSubscription} =
+  require("../adblockpluscore/lib/subscriptionClasses");
 
 Promise.all([FilterNotifier.once("load"), Prefs.untilLoaded]).then(() =>
 {
   if (Prefs.data_cleanup_done)
     return;
 
   if (FilterStorage.firstRun)
   {