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.Download Mac OS X Mountain Lion 10.8.5 latest full version standalone offline DMG image for your Apple computer. Mac OS X Mountain Lion 10.8.5 is a very powerful and reliable operating system for your Macintosh computer with different enhancements and improvements.

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. After this, no security updates will be provided.

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. 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. Get Firefox for Windows, macOS, Linux, Android and iOS today! Firefox For Mac Os X Firefox is created by a global non-profit dedicated to putting individuals in control online. Download Mozilla Firefox, a free Web browser. Firefox has replaced the Mozilla Suite as the flagship product of the Mozilla project, under the. Firefox started as a fork of the Navigator browser component of the Mozilla Application Suite. Download Old Version of Firefox for Mac for Mac OS X 10.8 (Mountain Lion) (Intel) Mozilla Firefox is a graphical web browser developed by the Mozilla Corporation and a large community of external contributors. Mac users interested in Mozilla firefox mac 10.5 8 generally download: Firefox 80.0 Free Firefox is one of the most popular web browsers on the market, providing numerous helpful features and quick speed to millions of users worldwide. 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 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.

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