I noticed one day that when I opened firefox it would restart itself each time before letting me do anything. I couldn't figure out why, but I happened to run my mouse over an invisible add on. It was unlabeled as well so I have no idea what is was. I deleted it and reported it but after closing firefox it did the same thing upon repopening it. Now the address bar is red and I don't understand why, how do I make it go back to normal. Also I have refreshed firefox a couple times but after each refresh it is the same thing.