Allllllmost PERFECT Rated 4 out of 5 stars

Indeed very fast, Awesome little addon works like a charm in FF 4

BUT .... it does necessitate me to click on it to see the exact PR every time. The addons graphics is SO TINY that its barely visible : too small to tell the difference between a 3 and a 4 etc is impossible to see from the graphic icon. Two possible solutions:

A) a soft white/gray number into the icon
B) a wider graphic that uses more horizontal space will solve this easily! Dont make it any higher, just twice wider. It will still be very tiny icon, but much more readable!

Once you do, I will come back to give 5/5 stars!

Salutations from Holland!
Sam
Art Director

This review is for a previous version of the add-on (1.2.1-signed). 

Adapted your suggestion. Added pagerank to graphics. Thanks for such detailed instruction. Please review the addon and let me know your thoughts.