User Agent: Mozilla/5.0 (Windows NT 6.0; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0 Build ID: 20141027150301 Steps to reproduce: Happened when updating Firefox. Actual results: After the update the the Minimize, Restore Down an the Exit button disappeared, but I can still click in that area and they will work.

Do you have a special theme installed for Firefox? If yes, could you test with the theme disabled. In addition, test these 2 steps: 1) safe mode: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode 2) clean profile: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

(In reply to Loic from comment #1) > Do you have a special theme installed for Firefox? > If yes, could you test with the theme disabled. > > In addition, test these 2 steps: > 1) safe mode: > https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe- > mode > 2) clean profile: > https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe- > mode Yes, I have a specific theme installed, and when I disabled it the buttons appeared again. Thank you!