In Firefox, when I click a control panel menu item, the menu appears, but as soon as I move my mouse off the top level of the menu and onto one of the menu items, the whole menu disappears.
This behaviour occurs in FF4 on Windows 7. In FF 3.6 on Ubuntu 10.10 it seems to be working right now, but I have a memory of the problem occurring there too. Perhaps the latter is just a figment of my imagination then.
Any comment?
Fritz