The new version of ColorfulTabs shuts off my themes it didn't in the past but when it updated several months ago it just messed with Firefox theme, I had to disable it in order to get more than a white border at the top of my browser page. No way to contact anyone for a fix I tried all the online suggestions but nothing works. I guess it's time to remove it altogether until they figure out how to make it work properly. Months ago I would have given it 4 stars but now it gets one.