This is on Firefox 142.0, and has happened on both Windows and Linux devices.
I recently enabled Vertical Tabs with the autohide option, and starting with this most rec… (hamaky bebe kokoa)
This is on Firefox 142.0, and has happened on both Windows and Linux devices.
I recently enabled Vertical Tabs with the autohide option, and starting with this most recent version, frequently now it will break so that when I hover over tabs and it expands, but leaving when leaving the tab bar it will not hide again, leaving the tabs expanded and covering part of the window. I've seen it happen with as few as 3 tabs open, and as many as 20+. Right now it's happening on one window with 18 tabs open, but not another with well over 20, and not on a 3rd window with 1 tab.
When this affects a window it affects it EVERY time. The only fix I've found is to grab every tab out and move to a new window, which is tedious when doing research and opening a ton of tabs, or when in the middle of doing something and suddenly you lose part of your screen.
Additionally, I've noticed an annoying quirk of the autohide that happens when the tabs are contracting. If I hover over tabs (when they're not broken) and then leave the tab area, but move my mouse to an element that would be covered by the tab area within 1-2 seconds of the tabs contracting (even if they're fully hidden again), the tabs pop back out again. I have to move my mouse far to the right, wait for tabs to hide, and then wait 1-2 seconds before it's safe to try and click things on the left side of the screen.