Como su nombre lo indica, las extensiones permiten extender Firefox y Thunderbird, permitiendo personalizar la navegación o la revisión de correo. Algunas incorporan pequeños cambios, y otras agregan muchisimas funcionalidades nuevas.
Ranking de extensiones para Firefox
| Extensión | Puntaje | Votos |
|---|---|---|
| Panic | 100% | 16 |
| Facebook Toolbar | 100% | 8 |
| Google Browser Sync | 100% | 8 |
| Secure Login | 100% | 6 |
| Foxmarks Bookmark Synchronizer | 100% | 5 |
| Firebug | 98.9% | 18 |
| McAfee SiteAdvisor | 98.4% | 25 |
| DownloadHelper | 96.9% | 26 |
| Fasterfox | 96.8% | 19 |
| IE Tab, abri sitios para Internet Explorer con Firefox | 96.8% | 37 |
| Lola | 96% | 5 |
| QuickRestart | 95.8% | 19 |
| Greasemonkey | 95.6% | 9 |
| FaviconizeTab | 95% | 8 |
| Mouse Gestures, atajos con el mouse | 95% | 4 |
| FireShot | 95% | 4 |
| Session Fix, permítele a otros usar tu PC sin miedo | 95% | 4 |
| Session Manager | 95% | 4 |
| DownThemAll! | 94.3% | 7 |
| Gmail Manager | 93.3% | 9 |
Programas
Me.dium reveals the hidden world of people and activity behind your Flock browser. With Me.dium you and your friends can see each other moving around the internet. You can surf the web together, mcts for the first time, in real-time.