Is this add-on going to be converted to the new Firefox standard or will it stop working with Firefox 57?
Here https://bugzilla.mozilla.org/show_bug.cgi?id=1320585 is issue that blocks ColorfulTabs convert to Web Extension for add support Firefox 57. Let's vote for implement this feature in Firefox!
Currently Firefox doesn’t let you modify any tabs. Please follow the discussion here: https://www.addongenie.com/forums/topic/colorfultabs-disabled-in-firefox-quantum
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