--- a/services/sync/services-sync.js
+++ b/services/sync/services-sync.js
@@ -25,17 +25,17 @@ pref("services.sync.scheduler.sync11.sin
 pref("services.sync.errorhandler.networkFailureReportTimeout", 1209600); // 2 weeks
 
 pref("services.sync.engine.addons", true);
 pref("services.sync.engine.bookmarks", true);
 pref("services.sync.engine.history", true);
 pref("services.sync.engine.passwords", true);
 pref("services.sync.engine.prefs", true);
 pref("services.sync.engine.tabs", true);
-pref("services.sync.engine.tabs.filteredUrls", "^(about:.*|chrome://weave/.*|wyciwyg:.*|file:.*)$");
+pref("services.sync.engine.tabs.filteredUrls", "^(about:.*|chrome://weave/.*|wyciwyg:.*|file:.*|blob:.*)$");
 
 pref("services.sync.jpake.serverURL", "https://setup.services.mozilla.com/");
 pref("services.sync.jpake.pollInterval", 1000);
 pref("services.sync.jpake.firstMsgMaxTries", 300); // 5 minutes
 pref("services.sync.jpake.lastMsgMaxTries", 300);  // 5 minutes
 pref("services.sync.jpake.maxTries", 10);
 
 // Allow add-ons to be synced from non-trusted sources.