Peringkat 5 dari 5 bintang

oleh aegiswindstorm pada Jan. 2, 2011 · tautan permanen

Just wanted to say that this addons does work with Firefox 4 Beta (Using it with Firefox 4 Beta 8 at the moment) Just install it after installing something like Add-on Compatibility Reporter:
https://addons.mozilla.org/en-US/firefox/addon/15003/
And you'll be able to install regardless of what version of FF you're using.