Rated 4 out of 5 stars

Από τον/την Χρήστης Firefox da7dfe στις Σεπτ. 27, 2011 · μόνιμος σύνδεσμος

Same as user klint mentioned: slows down enormously add-on manager display when many add-ons (60+ here). I'll use it with Thunderbird though (very few extensions). Handy. I still don't understand why displaying add-on compatibilities is not default to Firefox and Thunderbird.