On June 30th, macOS 10.9, 10.10 and 10.11 users will automatically be moved to the Firefox Extended Support Release (ESR).

Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8 Dedicated profiles per Firefox installation. I'm running Mac OS X 10.4.11 'Intel,' TenFourFox doesn't help with that. Whenever I load Firefox it tells me to upgrade to 12.0 for security reasons. 12.0 is most definitely not compatible with the version of OS X on my MacBook Pro. OldVersion.com provides free. software downloads for old versions of programs, drivers and games. So why not downgrade to the version you love? Because newer is not always bett.

While Apple doesn’t have an official policy governing security updates for older macOS releases, their ongoing practice has been to support the most recent three releases (i.e. version N, N-1, and N-2). The last security update applicable to macOS 10.11 was made available nearly 2 years ago in July 2018 (https://support.apple.com/en-us/HT201222). Unsupported operating systems receive no security updates, have known exploits, and can be dangerous to use, which makes it difficult and less than optimal to maintain Firefox for those versions.

Users do not need to take additional action to receive those updates. On June 30th, these macOS users will automatically be moved to the ESR channel through application update.

Firefox For Mac Os X 10.7

In the meantime, we strongly encourage our users to upgrade to mac OS X 10.12 or higher to benefit from the security and privacy updates.

Firefox For Mac Os 9

Firefox For Mac Os 10.7.5

For more information please visit the Firefox support page.