Mozilla®, Firefox® and the Firefox logo are registered trademarks of the Mozilla Foundation and are used with permission. Source Code: Launcher source (included), Firefox source.License: Free / Open Source (Launcher: GPL Firefox: MPL).System Requirements: Windows XP/Vista/7/8/10, Wine on Linux/UNIX.Version 45 (ESR) - Security Patches Through June 13, 2017įor help getting Firefox Portable up and running, visit Firefox Portable Support.
Visit the Firefox Portable Legacy 52 - 52.9.0 homepage. Version 52 (ESR) - Security Patches Through June 21, 2018 Visit the Firefox Portable Legacy 68 - 68.12.0 homepage. It’s over twice as fast as Firefox from 6 months ago, built on a completely overhauled core engine with brand new technology from our advanced research group, and graced with a clean, modern interface. Version 68 (ESR) - Security Patches Through August 18, 2020 Version 57.0, first offered to Release channel users on November 14, 2017. Visit the Firefox Portable Legacy 78 - 78.14.0 homepage. Version 78 (ESR) - Security Patches Through Sept 8, 2021
Visit the Firefox Portable Legacy 91 - 91.13.0 homepage. Mozilla Firefox, Portable Edition legacy editions works best with the Platform Version 91 (ESR) - Security Patches Through Aug 22, 2022 Individual users should use standard Mozilla Firefox, Portable Edition. These versions are not support by and may have known bugs and security issues. You can find Firefox 3.6.18 here.Mozilla Firefox®, Portable Edition legacy editions are available for web developer and extension developers to test against. There may be associated pieces of software with it, also called 'Mozilla Firefox name', like the updater. A directory of all previous versions is here. Download the version of Firefox you want. The downgrade procedure will leave your profile untouched. Since Firefox cannot be running while we update it, this must be done before anything else. > Firefox 4.0.1 > Win32 (for Windows 32-bit), > en-US (for US English version), download the > Firefox setup 4.0.1 exe file and run it to downgrade from Firefox 5 to Firefox 4. Simply vist the Mozilla FTP Server using your browser, navigate to the Firefox version you want to downgrade to, e.g. You do not have to uninstall Firefox to downgrade. A guide on the mozillaZine shows you how to locate your profile folder.
If, however, Firefox has become a snail or freezes or crashes regularly ever since you upgraded, downgrading may be your only option other than switching to a different browser.īefore you go ahead, back up your Firefox profile to be safe. If your main beef with the latest version of Firefox is that your favorite add-ons are not working, don't downgrade! Wait it out or make your add-ons compatible with any Firefox version. Please be sure to use sufficient security precautions to limit the potential damage on your computer. Older software versions receive limited support and security updates, making them vulnerable to malware from websites you visit. Before you proceed with downgrading your browser, you should be aware that this is a security liability.
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