Since about a week ago, possibly after the recent update, the tool bar icon of Firefox stoped working - now its a blank "document" icon. When hovering over the tool bar icon, the minimized version of the window displays the correct firefox icon over it, the desktop icon is also correct, but the blank tool bar icon persists. Reinstalling the program did not help.

It is a minor bug, but it's quite annoying when working with other text documents with similiar icons, or just with a lot of programs open at the same time.