Toolbar is not working correctly on main display (Ubuntu)

Hi, Recently I have a problem with toolbar and in the Firefox browser. Usually I have 3 display (display from laptop and two monitors). When I use Firefox browser on the main display the toolbar very often is not working correctly. Mainly the problem is with the folders inside the toolbar, so when I hover any folder, the bookmarks saved in that folder don't appear or appear for just one/two sec, then they disappear. The second problem is when I have the firefox open on the second display (or on the laptop display) and I moved any tab (only the tab, not entire Firefox application), then my toolbar shows only the first bookmark that is saved on my list. In attachments I added two ss (one is with my normal view on toolbar, and the second one is with the only first bookmark)