Firefox menus stop appearing after awhile- main menus, right click menus, hamburger menus
When Firefox first runs, it works properly. All menus appear properly. At some point after use, a hour or so, all the menus stop appearing. The main menus, right click context menus, hamburger menu, all stop showing up. Even the pull-down menu on this website for "Which topic best describes your question" fails to appear, though I can select an answer by clicking on it and using he down arrow.
Hardware acceleration does not affect it. The problem occurs whether it is on or off. Nothing fixes it except shutting down and restarting Firefox, and that is only a temporary measure, as it inevitably happens again after some use. z
Updating graphics drivers does not fix it. It has been happening over the last three sets of Nvidia driver updates.
Sometimes the menus temporarily return, but soon go away again. They are gone far longer than their short returns.
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Does it still happen in a new profile? An easy way to test a new profile is to install Developer Edition and see if it happens there or refresh your existing profile. Make sure you stay signed out of your sync account when testing.
Thanks. I have no sync account. I don't log in to Firefox. I just use firefox without syncing devices. If I create a new profile and switch to it, will I lose all bookmarks, auto-logins, etc?
Is this a troubleshooting step that will require me to create a firefox syncing account?
Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.
- switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
- do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window
- https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode
- https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
You can create a new profile as a quick test to see if your current profile is causing the problem.
See "Creating a profile":
If the new profile works, you can transfer files from a previously used profile to the new profile, but be careful not to copy corrupted files to avoid carrying over problems.
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