Firefox menu button displayed

[b_b]

Since last upgrade to firefox 28 the firefox menu button on top left of the window is displayed. So we got two menus : the global menu (provided by unity) and the one provided by the menu button.

Here is a screenshot : http://minus.com/i/brsaZiFVJE45f

And here is my apt history log for the firefox update :

Upgrade: firefox-locale-en:amd64 (27.0.1+build1-0ubuntu0.13.10.1, 28.0+build2-0ubuntu0.13.10.1), firefox-locale-fr:amd64 (27.0.1+build1-0ubuntu0.13.10.1, 28.0+build2-0ubuntu0.13.10.1), firefox:amd64 (27.0.1+build1-0ubuntu0.13.10.1, 28.0+build2-0ubuntu0.13.10.1), firefox-globalmenu:amd64 (27.0.1+build1-0ubuntu0.13.10.1, 28.0+build2-0ubuntu0.13.10.1)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Joschi Poschi (joschiposchi)]

Small addition is that the menu button can not be removed.
When in Private Mode I also get two icons, normal Private Mode icon and Private Mode menu button.

[Dan Jacka (danjacka)]

Sledgehammer solution: resetting Firefox (https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems) fixed this issue for me.

[b_b (brunobergot)]

Found a lighter solution to this bug here :

http://forum.ubuntu-fr.org/viewtopic.php?pid=16346471

1- go to "about:config" and set "ui.use_unity_menubar" to false
2- right click on the menu bar and tick "Menus bar"
3- set back "ui.use_unity_menubar" to true in about:config

Et voilà :)

[Joschi Poschi (joschiposchi)]

Great, that solved it for me.
I'm still wondering why it was like it was but overall I'm happy to be rid of the unnecessary button.