
Older versions that are not supported by Apple are unreliable and unsafe to use, which also makes it difficult to maintain Firefox on those versions. Do not run Firefox directly from the Firefox.dmg file, as this can result in. If you want to keep your Firefox version up to date, you will need to upgrade your operating system to macOS 10.12 or higher. Drag the Firefox icon on top of the Applications folder in order to copy it there. How can I get the newest features of Firefox? (also on your internal hard disk) as long as it has 57 MB of free space and use on any Mac OS X computer.
Download firefox version 57 for mac os for mac#
After this, no security updates will be provided. Download Portable Firefox for Mac to packaged for portable drives. Up until July 2021, we will be updating affected users with critical security updates through the Firefox ESR channel to help retain the best possible security.

Unsupported operating systems do not receive security updates, have known exploits and can be dangerous to use, which makes it difficult to maintain Firefox on those versions.Ĭan I still browse safely with Firefox on OS X 10.9, 10.10 or 10.11? The last security update applicable to OS X 10.11 was made available in July 2018. While Apple does not have a public policy governing security updates for older OS X releases, their ongoing practice has been to support the most recent three releases. Why has Firefox ended support for OS X 10.9, 10.10 and 10.11 users? This will provide security updates until the next ESR update in July 2021, after which the affected users will no longer receive security updates.

These users will be moved to the Firefox Extended Support Release (ESR) channel by an application update. Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Releaseįirefox version 78 is the last supported Firefox version for Mac users of OS X 10.9 Mavericks, OS X 10.10 Yosemite and OS X 10.11 El Capitan.
