Mozilla has officially designated as the final supported version for Windows 7, 8, and 8.1.
After August 2026, if no further extensions are announced, the browser will no longer receive security patches, making it vulnerable to new online threats. How to Download and Install Firefox on Windows 8
Open your current browser (like Internet Explorer or an older version of Chrome) and navigate to the Firefox Download Page . mozilla firefox download for windows 8
The site will detect that you are running Windows 8 and will automatically prompt you to download the Firefox 115 ESR installer for your 32-bit or 64-bit system.
While Windows 8 users cannot access the "cutting edge" features of the most recent Firefox versions (like newer AI integrations), version 115 ESR remains highly functional: Firefox support for Windows 7, 8 and 8.1 Mozilla has officially designated as the final supported
Users on Windows 8 are automatically moved to the Firefox 115 ESR channel.
To ensure you get the most secure version available for your system, follow these steps: The site will detect that you are running
Once installed, Firefox will launch automatically. You can choose to set it as your default browser and import bookmarks or passwords from other browsers. Key Features for Legacy Users