I'm using Firefox 46.0+build5 on Ubuntu 16.04 and this bug just hit me after many years of using the global dark theme (Adwaita + Humanity Dark icons).
If I turn off the "Global Dark Theme" in Gnome tweak tool, everything is back to normal in Firefox. It seems to me that the bug is somewhere in /usr/share/themes/Adwaita/gtk-2.0/gtkrc. Essentially, going to pages like this https://net- ssh.github.io/scp/v1/api/classes/Net/SCP.html is completely unreadable. If I highlight the invisible text, I'm able to see there is something there whose color matches the background color! In other words, it's not useful to mess with the default web page colors to try to make the "dark" theme work 100% of the time across all kinds of webpages. That's only 1 example of many places where this new theme has broken functionality. Some forms present unreable or "invisible" inputs!! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/220263 Title: Bad Firefox integration with dark themes To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/220263/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs