GNOME theme for Firefox
(This is the theme previously known as "Adwaita".)
An easy-to-install version of this theme is available at Mozilla's ADD-ONS site.
We recommend HTitle for the full GNOME 3 experience.
For current issues please see the bug tracker.
Help & feedback are both appreciated! ;-)
Tabs on top:
Tabs on bottom:
about:config in your URL bar and change browser.tabs.onTop to false.)