Should be call "Slowerfox" Rated 1 out of 5 stars

Firefox was loading webpages agonizingly slow and I had no clue what the problem was until I disabled "Fasterfox." Now it is working fine. Just glad to have my browser working normally again.

This review is for a previous version of the add-on (3.9.8). 

well, obviously you didnt set it up, you need to go to 'tools > addon's and fasterfox and click options and change what speed you want