If you have submitted crash reports then please post the IDs of one or more recent crash reports that have a "bp-" prefix: *bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx You can find the Report ID of recent crash reports on the "Help > Troubleshooting Information" page (about:support). *Click the "All Crash Reports" button on this page to open the <b>about:crashes</b> page and see all crash reports. If necessary then you can open <b>about:</b> pages via the location/address bar. See: *http://kb.mozillazine.org/Mozilla_Crash_Reporter *https://support.mozilla.org/kb/Mozilla+Crash+Reporter ---- Try to disable IPv6 (check for other possible causes as well). *http://kb.mozillazine.org/Error_loading_websites