Mozilla Firefox is a free, privacy-centric open-source web browser developed by the Mozilla Foundation and its subsidiary, Mozilla Corporation. Powered by the Gecko rendering engine and SpiderMonkey JavaScript engine, Firefox offers Enhanced Tracking Protection, multi-account containers, and independent web standards compliance.
| Developer | Firefox Project / Developers |
|---|---|
| Browser engine | Servo |
| Supported platforms | Windows, macOS, Linux, Android, iOS |
| User Agent | Platform | Device |
|---|---|---|
| Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0.4) Gecko/20100101 Firefox/151.0.4 | Windows 10 | Unknown |
| Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:150.0.2) Gecko/20100101 Firefox/150.0.2 | Windows 10 | Unknown |
| Mozilla/5.0 (X11; Linux 6.12.101+deb13-amd64 x86_64; rv:140.0) Gecko/20100101 Firefox/140.0 | GNU/Linux | Unknown |
| Mozilla/5.0 (Macintosh; Intel Mac OS X 14.0; rv:136.0) Gecko/20010101 Firefox/136.0 | Mac 14 | Unknown |
| Mozilla/5.0 (Macintosh; Intel Mac OS X 11.3; rv:135.0) Gecko/20110101 Firefox/135.0 | Mac 11 | Unknown |
| Mozilla/5.0 (Windows NT 10.0; Win32; x32; rv:141.0) Gecko/20100101 Firefox/141.0 | Screen:2560x1440 | Window:1920x947 | Windows 10 | Unknown |
| Mozilla/5.0 (X11; Linux x86_64; rv:141.0) Gecko/20100101 Firefox/141.0 | Screen:1680x1050 | Window:1680x990 | GNU/Linux | Unknown |
| Mozilla/5.0 (X11; Linux; rv:136.0) Gecko/20160101 Firefox/136.0 | GNU/Linux | Unknown |
| Mozilla/5.0 (X11; Linux; rv:136.0) Gecko/20222609 Firefox/136.0 | GNU/Linux | Unknown |
| Mozilla/5.0 (Windows NT 11.0; Win64; x64; rv:153.0) Gecko/20100101 Firefox/153.0 | Windows 11 | Unknown |