GoKawiilFirefox Extended Support Release (ESR) is an official version of Firefox developed for large organizations like universities and businesses that need to set up and maintain Firefox on a large scale. Firefox ESR does not come with the latest features but it has the latest security and stability fixes.
Get the Firefox Extended Support Release or Rapid Release browser for comprehensive data security and data protection.
Your data stays your business
The Firefox browser is open source, provides Enhanced Tracking Protection and soon will support DNS over HTTPS --- all part of our longstanding commitment to data protection.
Deploy when and how you want
With install packages and a wide expansion of group policies and features, deployment is faster and more flexible than ever --- and a breeze in Windows and macOS environments.
Choose your release cadence
Get rapid releases to make sure you get the latest features faster, or go extended to ensure a super stable experience.
What's New
Firefox version 115 will be the last supported Firefox version for users of Windows 7, Windows 8, Windows 8.1, macOS 10.12 (Sierra), macOS 10.13 (High Sierra) and macOS 10.14 (Mojave). If you are using these versions of Windows or macOS you will be moved to the Firefox Extended Support Release (ESR) channel by an application update. Mozilla will provide security updates for Firefox 115 ESR until March 2027, when the position will be re-evaluated.
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