Rated 5 out of 5 stars

Very cool! It feels strange, but I like it a lot. It's a shame I cannot move my Actual Windows Manager button to the bottom with it. Looks like a job for AutoHotkey.

This review is for a previous version of the add-on (0.1.2). 

Does what it says simply and easily, though more options would be nice Rated 5 out of 5 stars

Just click download, and in a moment your tab bar and location bar will move to the bottom of the Firefox window.

I've wanted to try this layout for a long time, because I prefer to focus on the web page content and not on the browser's buttons, tabs, etc. Also, it might help others using this addon if they use keyboard commands to access the location bar (CTRL+L or ALT+D) and to switch tabs (I use the addons SwiftTabs and All Tabs Restorer); using the keyboard, it doesn't matter where those controls are located.

It would be helpful to be able to control which bars are on top: Tab, location, and any other bars at the bottom of the screen, but the default happens to work best for me.

This review is for a previous version of the add-on (0.1.2). 

Rated 5 out of 5 stars

It is a nice small extension that works as described on OS X.

This review is for a previous version of the add-on (0.1.0). 

Rated 4 out of 5 stars

It works. Feels a little strange at first but probably more efficient when I get used to it. I would give 5 stars if it had option to alter the order of the toolbars. Checking/unchecking tabs on top does change tabs toolbar location, still not quite enough.

This review is for a previous version of the add-on (0.1.0). 

Hey, thanks for reviewing and testing!
I'll considere your suggestion. Personally I don't need it, but if it is easy to do I'll add it for sure!