Firefox ESR does not come with the latest features but it does have the latest security and stability fixes. Firefox Extended Support Release (ESR) is an official version of Firefox developed for large organizations, such as universities and businesses, but it can also be used for personal computers.
Install Firefox Extended Support Release.
Instead of downgrading to an older, insecure version of Firefox and changing your update settings, you should consider these alternatives: In the General panel, go to the Firefox Updates section. Click the menu button and select Settings. Click the menu button and select Options Preferences. In the Menu bar at the top of the screen, click Firefox and select Preferences. To prevent Firefox from automatically updating itself after you install an older version, you'll need to change your Firefox update settings: Important: By default, Firefox is set for automatic updates. Fix problems connecting to websites after updating Firefox.
I have platform set to Italian and and the "Use this language." checkbox active, but today firefox upgrade form italian 45.0.2 to english 46. You can get the German release from the German homepage and the other localized releases from the Localization page.
Mozilla Firefox, Portable Edition is available for immediate download from the Mozilla Firefox, Portable Edition homepage. And it's in Format, so it automatically works with the Platform including the Menu and Backup Utility. Mozilla Firefox, Portable Edition is packaged in a Installer so it will automatically detect an existing installation when your drive is plugged in. Plus, thanks to the launcher bundled in the Mozilla Firefox, Portable Edition, it leaves no personal information behind on the machine you run it on, so you can take your favorite browser along with all your favorite bookmarks and extensions with you wherever you go. It has lots of great features including popup-blocking, tabbed-browsing, integrated search, improved privacy features, automatic updating and more. Mozilla Firefox is a fast, full-featured web browser that's easy to use. Update automatically or install from the portable app store in the Platform. Mozilla®, Firefox® and the Firefox logo are registered trademarks of the Mozilla Foundation and used under license. It's available for immediate download and bundled on the World's Best Flash Drive: The Carbide as well as the fast and affordable Companion. Firefox Portable is a dual-mode 32-bit and 64-bit app, ensuring Firefox runs as fast as possible on every PC. And it's open source and completely free. It's the Mozilla Firefox browser bundled with a launcher as a portable app, so you can take your browser, bookmarks, settings and extensions on the go. is proud to announce the release of Mozilla Firefox®, Portable Edition 45.0.2.