Add-on Compatibility Report for Firefox 20.0

20.0 20.0a2 20.0a1 Other
Top 95% compatible with previous version 99.4% (662) 0.0% (0) 0.0% (0) 0.6% (4)
Top 95% of all add-ons 93.65% (737) 0.0% (0) 0.0% (0) 6.35% (50)
All active add-ons 69.05% (10725) 0.0% (0) 0.01% (2) 23.91% (3713)

Details for add-ons compatible with previous version: Show all versions

Mozilla Firefox hotfix 37.0 75,695,411 users (39.28%)
Adblock Plus 43.0 17,426,663 users (9.04%)
Microsoft .NET Framework Assistant 26.* 7,646,636 users (3.97%)
McAfee Security Scan Plus detection 39.* 5,144,145 users (2.67%)
Video DownloadHelper 41.0 3,960,355 users (2.05%)
English (GB) Language Pack 39.* 1,924,645 users (1.0%)
NoScript Security Suite 41.0 1,897,125 users (0.98%)
English (South African) Language Pack 39.* 1,784,593 users (0.93%)
Firebug 41.0 1,509,100 users (0.78%)
Ghostery 41.* 1,240,968 users (0.64%)
DownThemAll! 39.* 1,152,410 users (0.6%)
Greasemonkey 40.* 1,076,771 users (0.56%)
Adblock Plus Pop-up Addon 39.* 1,049,972 users (0.54%)
Советник Яндекс.Маркета 38.* 1,017,331 users (0.53%)
Flash Video Downloader - YouTube HD Download [4K] 39.* 976,911 users (0.51%)
Web of Trust, WOT: Website Reputation Ratings 41.0 896,082 users (0.46%)
Garmin Communicator 39.* 811,509 users (0.42%)
Download YouTube Videos as MP4 42.0 803,307 users (0.42%)
FlashGot Mass Downloader 40.0 798,983 users (0.41%)
Tab Mix Plus 39.* 760,558 users (0.39%)