Looks like there are multiple BackgroundNormal items in the file. The fix goes to the "[Colors:Tooltip]" section.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1580168 Title: Tab descriptions are unreadable, black text on black background Status in firefox package in Ubuntu: Confirmed Bug description: When I hover the mouse button on top of the Firefox tabs, the tab descriptions are unreadable, black text on black background. This also happens on some other web sites which pop up a description box, e.g. on portal.azure.com when hovering over your username in the top right corner in the browser. This probably started happening when Firefox was first compiled against gtk3. My gtk3 theme is oxygen-gtk. 1) The Kubuntu release is 14.04.4 2) The version of Firefox is 46.0+build5-0ubuntu0.14.04.2 3) I expect to be able to read the tab descriptions 4) The tab descriptions are black text on black background To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1580168/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp