@ grimpow Rated 5 out of 5 stars

@ grimpow

Add the below to the last line to your userChrome.css
Make sure there is a space between them.
Where it says "Not Firefox" replace that with your desired name.

#appmenu-button .button-text { display:none !important; }
#appmenu-button dropmarker:before { content: "Not Firefox" !important; display: inline !important;}

That's it!

This review is for a previous version of the add-on (5.0.7).