Add-on Compatibility Report for Firefox 20.0

20.0 20.0a2 20.0a1 Other
Top 95% compatible with previous version 99.4% (493) 0.0% (0) 0.0% (0) 0.6% (3)
Top 95% of all add-ons 81.67% (557) 0.0% (0) 0.0% (0) 11.0% (75)
All active add-ons 62.01% (8861) 0.0% (0) 0.04% (6) 30.35% (4337)

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

Element Hiding Helper for Adblock Plus 31.0 1,059,462 users (0.36%)
Flagfox 30.0a2 979,195 users (0.33%)
Download YouTube Videos as MP4 31.0 962,942 users (0.32%)
Web Developer 28.* 922,072 users (0.31%)
FireFTP 28.* 908,544 users (0.31%)
1-Click YouTube Video Download 28.* 882,118 users (0.3%)
Personas Plus 26.* 868,054 users (0.29%)
IE Tab V2 (Enhanced IE Tab) 29.0 858,849 users (0.29%)
Stylish 30.0 761,063 users (0.26%)
Download Flash and Video 29.* 733,217 users (0.25%)
Google Translator for Firefox 27.* 729,335 users (0.25%)
Chinese Simplified (zh-CN) Language Pack 28.0.* 720,136 users (0.24%)
BetterPrivacy 27.* 706,444 users (0.24%)
United States English Spellchecker 29.0 659,964 users (0.22%)
Adblock Edge 30.0 644,839 users (0.22%)
German Dictionary 30.0 620,429 users (0.21%)
Speed Dial 27.0 603,937 users (0.2%)
ImTranslator - Online Translator, Dictionary, TTS 29.* 588,767 users (0.2%)
AVG Do Not Track 27.* 574,590 users (0.19%)
Interface Português/Brasil [pt-BR] 28.0.* 572,566 users (0.19%)