Rated 5 out of 5 stars

I would've given it 10 stars if possible. The only addon that nearly every one of my FF installation has (besides my own addons that is).

I do feel that it does slow down page loading a little bit - quite understandable though and a tiny price to pay for a much nicer browsing experience than without it.

This review is for a previous version of the add-on (1.3.9).