When I open Firefox, the top of the browser isn't there.
When I open Firefox, the top of the browser isn't there. Switching to full screen and then back again fixes it. However, it happens every time I open Firefox. How do I stop it?
When I open Firefox, the top of the browser isn't there. Switching to full screen and then back again fixes it. However, it happens every time I open Firefox. How do I stop it?
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Try to rename/remove xulstore.json in the Firefox profile folder with Firefox closed.
You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.
- Help -> Troubleshooting Information -> Profile Directory/Folder:
Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder - https://support.mozilla.org/en-US/kb/Profiles