Firefox section

Firefox Release Schedule
May 27th 2025	June 24th 2025	July 22nd 2025
May 27th 2025	June 24th 2025	July 22nd 2025
Firefox 141 nightly	Firefox 142 nightly	Firefox 143 nightly
Firefox 140 Beta	Firefox 141 Beta	Firefox 142 Beta
Firefox 139 Release	Firefox 140 Release	Firefox 141 Release

Popup windows and Firefox: interactive demos

Testing sound (audio/midi content-type) in Firefox

Resources for Firefox: help, tips, resources, FAQs and solutions to problems

Firefox Support: Help and Tutorials
Using Firefox: a complete online text book designed to help you get the most out of the open source web browser. Available in 8 languages!
Firefox 138 for Developers
Extensions for Firefox Available in dozens of languages!
Firefox Support forum at MozillaZine
References on about:config entries and related properties Fine-tune preferences in Firefox. This is for intermediate and advanced Firefox users

International resources for Firefox users

Firefox International Download the latest version of Firefox in your platform and in your language (96 languages available)
Mozilla Japan
Mozilla 中国中心
Setting up Firefox Web Browsers for Multilingual and Unicode Support

Last update: May 5th 2025