After a recent Firefox update, all of my menus and bookmarks toolbar have begun to flash when they're accessed. The content shows for a moment, but then I only see the outline and whatever was underneath shows through.
How can I fix this?
This seems to have something to do with the browser's use of hardware acceleration.
In my case, disabling hardware acceleration in the browser resolved the problem.
To do this:
Following these steps made my problem go away.