Try this.Open your TB profile:- TB menu > Help > Troubleshooting Information- click the Application Basics > Profile Folder 'Open Folder' button- close TB- in the profile folder, rename xulstore.json to xulstore.jsox- restart TB
Try these one at a time, checking after each.See what happens in Troubleshoot mode (https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode/)---Clear the browser cache:- press Ctrl-Shift-Delete (Mac: Cmd-Shift-Delete)- se...
