I got a message from one of my users about Firefox this morning. The problem is that he gets a Run As dialog every time he opens Firefox. It’s kinda annoying. I thought it might be a virus or a trojan. The cause is actually harmless.
Every time Firefox opens up, the automatic update kicks in and tries to update itself. Because the user doesn’t have administrator privilege, the update fails and it prompts the user to enter a different credential. The fix is quite easy. Just update Firefox to the latest version. You can also turn off the automatic update. Therefore, you can install the updates when you see fit and the user won’t see the annoying pops up again.