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Firefox version 115 is the last supported Firefox version for users of Windows 7, Windows 8 and Windows 8.1. If you have been using Firefox on these versions of Windows, you will be moved to the Firefox Extended Support Release (ESR) channel by an application update.
What is changing?
- Firefox 115 is now the last version supported on Windows 7, 8 and 8.1.
- Updates will be delivered through the ESR channel until the end of August 2026. It was previously announced that support would end in February 2026, but in order to ensure our users can continue to browse the web, we will extend support for Firefox for these operating systems for another six months and then re-evaluate.
- After that, if support is not extended, users should upgrade their operating system to continue receiving Firefox security and feature updates.
If you want to install Firefox on Windows 7, Windows 8 or Windows 8.1 and you visit the Firefox download page, your Windows version will be detected, and you will be prompted to download the latest Firefox 115 ESR version for your 32-bit or 64-bit Windows system.
- Click the button. The Firefox Installer that downloads will automatically offer you the best available version of Firefox for your computer.
Windows 10 may show you a warning when installing apps that aren't from the Microsoft Store. See Windows 10 warns me to use a "Microsoft-verified" app for more information.
- However, you can also manually select the version of Firefox you prefer. Click .
- Choose the version of Firefox you prefer.
- Choose your preferred operating system.
- Choose your preferred language.
- Click on
Will Firefox further extend support for Windows 7, 8 and 8.1 users?
It was previously announced that support would end in February 2026, but in order to ensure our users can continue to browse the web, we will extend support for Firefox for these operating systems for another six months and then re-evaluate.
Note that Microsoft ended official support for Windows 7, 8, and 8.1 in January 2023. Unsupported operating systems receive no security updates and have known vulnerabilities. Without official support from Microsoft, maintaining Firefox for outdated operating systems becomes costly for Mozilla and risky for users.
Will switching to a different browser keep me protected?
No. Most browsers, including Google Chrome and Microsoft Edge, have already ended support for Windows 7, 8 and 8.1.
Can I still browse safely with Firefox Windows 7, 8 and 8.1?
Mozilla is providing critical security updates through the Firefox ESR channel up until the end of ESR version 115 in August 2026, and will then announce further extensions or an end of support.
How can I get the newest features of Firefox?
If you want to keep your Firefox up to date, with all the latest features and security updates, you need to upgrade your operating system to Windows 10 or higher. In some cases, Microsoft may require newer hardware in order to support the newer operating system. After upgrading, you can easily reinstall Firefox and keep all of your settings.
Or, if your current hardware can't handle Windows 10 or higher for some reason, you can switch to a Linux-based operating system. The vast majority of Linux distributions come with Firefox as the default browser. Please see the support websites for the version of Linux that you're interested in.
