Hi all, I have created a simple Firefox extension that modifies the title of a tab. It works flawlessly on every machine, except one. On this particular machine, It worked when I first installed it, then after some time it stopped modifying the title. It is still in the extensions list and is enabled. If I log into this computer as a different user, the extension works, so it appears it has something to do with the User's profile, but there is nothing in there out of the ordinary (at least from what I can see). Is there anyway to debug this? a debug build of Firefox or some extra logging? Thanks, Grant