| Strict Transport Security - Declarative Security Detector | | - | | |
| Super User Agent | | - | | |
| Sutare_Extension | | - | | |
| Swap Proxy | | - | | |
| SwitchHosts | | - | | |
| TAB TRAFFIC MONITOR | | - | | |
| TFToolbarX | | - | | |
| Tamper Data | | - | | |
| ThumbsDown | | - | | |
| Toggle Cipher Suites | | - | | |
| Toggle Proxy | | - | | |
| Tor Flashproxy Badge | | - | | |
| Traction Control | | - | | |
| TryAgain | | - | | |
| Turbo Download Manager | | - | | |
| UAControl | | - | | |
| URL Logger | | - | | |
| URL Swap | | - | | |
| Update Scanner | | - | | |
| UploadProgress | | - | | |
| UrlParams | | - | | |
| User Agent Changer | | - | | |
| User Agent Overrider | | - | | |
| User Agent Quick Switch | | - | | |
| User Agent RG | | - | | |
| User Agent RG (FFox update) | | - | | |
| User Agent Switcher | | - | | |
| User Agent Switcher (812521) | | - | | |
| User-Agent Switcher | | - | | |
| Video Download Helper | | - | | |
| Video Myxa | | - | | |
| VideoPark Video Downloader | | - | | |
| View Dependencies | | - | | |
| WATS | | - | | |
| WX Download Status Bar | | - | | |
| Website City + Country Info | | - | | |
| WordPress Version Check | | - | | |
| X-Forwarded-For Header | | - | | |
| Yellow-Urlbar | | - | | |
| ZIP Manager | | - | | |
| about：me | | - | | |
| anonymoX | | - | | |
| cliget | | - | | |
| dlTracker | | - | | |
| eco-mon | | - | | |
| external IP | | - | | |
| https-only | | - | | |
| ip-check | | - | | |
| laters | | - | | |
| lget | | - | | |
