Top Ten Add-ons

I’ve wanted to make this post for awhile and never got around to it, but a recent conversation reminded me about it. Below are the “top 10” add-ons (extensions and themes) collected three different ways. (This table best viewed on my actual blog.)

Total Downloads Active Users Facebook Favorites
1 FlashGot Adblock Plus Adblock Plus
2 NoScript FlashGot Greasemonkey
3 Noia 2.0 (eXtreme) Download Statusbar Download Statusbar
4 VideoDownloader IE Tab Web Developer
5 Forecastfox Forecastfox IE Tab
6 Adblock Plus VideoDownloader Firebug
7 Adblock Noia 2.0 (eXtreme) Tab Mix Plus
8 Fasterfox Fasterfox Bookmarks
9 IE Tab Tab Mix Plus StumbleUpon
10 Download Statusbar PDF Download FoxyTunes

Total Downloads and Weekly Downloads are the methods currently used for the “Most Popular” searches on AMO, and represents the number of downloads of that add-on from

Active Users is based on the number of daily update pings, and is a better metric of the popularity of an add-on because it shows which are actually being used after downloading. This information is not yet available on AMO, but we’re working on it.

Facebook Favorites is the number of users that have added that add-on to their favorites/recommended list in Rock Your Firefox. This shows add-ons that are both in use and loved. It would be a better metric of both popularity and quality than the others if the data wasn’t skewed a bit in that people that use Rock Your Firefox tend to be more technically inclined. Once we bring the favorites system to AMO, this data will be more reliable.