How can I completely uninstall Firefox, then re-install? My brothers Firefox icon is just blank for some reason on the Unity sidebar. It launches but the icon is completely blank nothing there. If I uninstall this for him and then re-install will it work? Please help. I want to get this fixed for him.
First try moving his profile data out of the way, it may be corrupted. One easy way to do it is to rename the .mozilla directory, on a terminal:
When you restart Firefox it will rebuild a new profile.
If you want to completely wipe out and reinstall firefox, on the terminal do this:
This will remove all traces of the Firefox system files. Then, to reinstall:
You can reinstall firefox with the following command:
If that doesn't help, see http://ubuntuforums.org/showthread.php?t=1898600