I have attached a picture of what is going on with my Firefox. As you can see there is this grey space in all of my themes that i can not find a way to disable or get rid of. this appeared about three weeks ago or so. It has not happened on my laptop at home. can someone please help. On top is a clear version of the theme while on the bottom is a thick transparent space that has never been there. It makes all my themes looks hazy or milky. Its really ugly and would like a solution please.