(Windows-7/32 bit) I'm using the left sidebar to display my bookmarks. The last few FireFox updates have caused a problem (currently running 101.0.1 but have noticed the problem with previous versions). Unpredictably, when changing web pages, the bookmarks menu just rolls up for no apparent reason. Hitting CTRL-B/CTRL-B restores it, but it's also an annoyance, it does it several times a day. Why does it do that at all? Anyone have any ideas?