Rated 5 out of 5 stars
Does exactly what it sounds like, hides the title bar. For Linux users (like me) just download the extension (right click, save link as, etc.) Then, from the download box, just drag the saved file into your Firefox browser, another dialog popped up asking me if I wanted to install, you do. It works perfectly, no problems yet. At first the buttons look like Windows buttons, but you can change that with a simple menu option. (I'm using Xfce with Linux Mint Debian, Firefox 17).This review is for a previous version of the add-on (2.7.3).