v.6.0.2, offered to release channel users on September 6th, 2011 Check out what’s new, the known issues and frequently asked questions about the latest released version of Firefox. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla.
The latest version of Firefox has the following changes:
If you see “(32-bit)” and you are running Firefox 56.0 or older, updating to the latest Firefox version should automatically upgrade you to 64-bit. If you see “(32-bit)” and are running Firefox 56.0.1 or newer, then your computer may not meet the minimum memory requirement for 64-bit (3 GB RAM or more).
You may also be interested in the list of changes in the previous version.
Before installing, make sure your computer meets the system requirements.
Mozilla provides Firefox for Windows, Linux, and Mac OS X in a variety of languages. You can get the latest released version of Firefox here or the latest development version of Firefox here.
For builds for other systems and languages not provided by Mozilla, see the Contributed Builds section at the end of this document.
Please note that installing a new version of Firefox will overwrite your existing installation of Firefox. You won’t lose any of your bookmarks or browsing history, but some of your extensions and other add-ons might not work until updates for them are made available.
You can remove Firefox with the Add/Remove Programs utility on Windows, by moving the Firefox application to the Trash on Mac OS X, or by deleting the containing folder on Linux.
By default, removing Firefox won’t remove your bookmarks, web browsing history, extensions or other add-ons. This data is stored in your profile folder, which can be found by going to the Help menu and selecting Troubleshooting Information.... The button next to the Profile Directory line in Application Basics will open your profile directory in your system's file explorer.
Please note that if you keep your profile, any version of Firefox that you install after removing Firefox will continue to use the bookmarks, web browsing history, add-ons, and other data from this profile folder.
You can get Add-ons and Themes by opening the Add-ons Manager, or by visiting the Add-ons Web site. Add-ons installed with previous versions of Firefox may not yet have been updated by their authors to work with this Firefox. If you wish to help test Add-ons, please install the Add-on Compatibility Reporter - your favorite Add-on author will appreciate it!
This list covers some of the known problems with Firefox which will be resolved in future versions:
firefox.exe -safe-mode
. On Linux, start with ./firefox -safe-mode
and on Mac OS X, run: cd /Applications/Firefox.app/Contents/MacOS/
./firefox-bin -safe-mode
We need help from developers and the testing community to provide as much feedback as possible to make Firefox even better. Please pick your favorite way to give us your feedback at any time!
You can preview the future of Firefox by joining our Aurora or Beta development channel.
Extensions and Themes can be downloaded from Firefox Add-ons.
Lots of people. See Help->About Mozilla Firefox, and click the 'global community' for a list of some of the people who have contributed to Firefox.
A tarball of the Firefox source code is available for download. The latest development code can be obtained through Mercurial. Firefox-specific source is in mozilla-central's 'browser', 'toolkit', and 'chrome' directories. Please follow the build instructions.
Firefox works with whatever mail client is the default on your system. However, we recommend Mozilla Thunderbird, our next-generation email client and the perfect complement to Firefox.
Contributed builds are unofficial builds contributed by the Mozilla Community. They may be configured differently than the official Mozilla builds. They may also be optimized and/or tested for specific platforms. You can browse through the available contributed builds in the 'contrib' directory on the FTP site.
The following resources contain useful information about Firefox