Forgot to add: if I go systemsettings -> Appearance -> Gtk styles and fonts, and select GTK styles -> Use another style -> Qt (instead of Qt4), then adding the extension does not crash firefox and proceeds normally.
-- Applying KDE style to GTK applications causes them to crash when interacting with toolbars https://bugs.launchpad.net/bugs/254984 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
