Add-on Compatibility Report for Firefox 20.0

20.0 20.0a2 20.0a1 Other
Top 95% compatible with previous version 99.5% (601) 0.0% (0) 0.0% (0) 0.5% (3)
Top 95% of all add-ons 93.52% (678) 0.0% (0) 0.0% (0) 6.48% (47)
All active add-ons 68.39% (11244) 0.0% (0) 0.01% (2) 24.72% (4064)

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

Mozilla Firefox hotfix 37.0 120,277,083 users (39.81%)
Adblock Plus 42.0 22,610,421 users (7.48%)
McAfee Security Scan Plus detection 38.* 16,296,812 users (5.39%)
Microsoft .NET Framework Assistant 26.* 13,584,580 users (4.5%)
avast! Online Security 35.* 7,105,180 users (2.35%)
Video DownloadHelper 41.0 5,574,397 users (1.85%)
English (GB) Language Pack 38.* 3,115,359 users (1.03%)
Firebug 41.0 2,809,291 users (0.93%)
English (South African) Language Pack 38.* 2,807,462 users (0.93%)
NoScript Security Suite 41.0 2,334,051 users (0.77%)
Ghostery 41.0 1,555,015 users (0.51%)
DownThemAll! 38.* 1,528,671 users (0.51%)
Greasemonkey 40.* 1,381,357 users (0.46%)
Adblock Plus Pop-up Addon 38.* 1,318,602 users (0.44%)
Flash Video Downloader - YouTube HD Download [4K] 39.* 1,234,934 users (0.41%)
Web of Trust - WOT 38.* 1,197,389 users (0.4%)
Español (España) Language Pack 38.* 1,171,262 users (0.39%)
FlashGot Mass Downloader 40.0 1,074,349 users (0.36%)
Garmin Communicator 38.* 1,063,323 users (0.35%)
Download YouTube Videos as MP4 41.0 1,058,345 users (0.35%)