I been using colorful tabs for quite a while. Recently with the latest upgrade of Firefox, there seems to be an issue where if I enable colorful tabs, the theme that I have installed disappears and only a white band shows on top, and the tab color on the entire URL/search bar.
Only after I disable colorful Tabs and restart my browser does my theme show up again.
I have had the same issue after updating to the latest version
same thing here
Closed to https://www.addongenie.com/forums/topic/colorfultabs-disabled-in-firefox-quantum Please see the end of the thread.
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