Hi, Could you please try a couple more things: * [[Diagnose Firefox issues using Troubleshoot Mode|Run Firefox in Troubleshoot Mode]] and see if the issue persists.. If it doesn't, please follow the steps from [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems | this article]] to troubleshoot further. * If the above doesn't help, [[Manage Firefox profiles|create a new Firefox profile]] and check if the issue persists there. If it doesn't, you can [[Restore bookmarks, passwords and data from an old Firefox profile|start copying files from your old profile to the new one]] to identify which one causes the issue. See [[About your important data and their files|this article]] on what files to copy.