On June 30th, macOS 10.9, 10.10 and 10.11 users will automatically be moved to the Firefox Extended Support Release (ESR).
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.
When I go to the adobe website to download Adobe Flash Player: System requirements Adobe Flash Player 32 Mac OS X Mac OS X v10.10, or later Latest versions of - 10252294. 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. User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 1095) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.122 Safari/537.36. Mac OS X 10.1 (Firefox 1.0.8), OS X 10.2 and OS X 10.3 (Firefox 2.0.0.20), Mac OS X 10.4 (Firefox 3.X), Mac OS X 10.5 or above (Current Version). About; Download Old Version of Firefox for Mac for Mac OS X 10.9 (Mavericks) (Intel) Skip Development Versions tead. Latest Firefox features include tabbed browsing. Mac OS X 10.9 (Mavericks) (Intel) (81). Download Old Version of Firefox for Mac for Mac OS X 10.5 Leopard (Intel) Skip Development Versions tead. Spell checking, incremental find, live bookmarking, a download manager, private browsing, location-aware browsing (also known as 'geolocation') based exclusively on.
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.
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.
For more information please visit the Firefox support page.
Mozilla's web site says this:Firefox 48.0 System Requirements for Mac Operating Systems • Mac OS X 10.9 • Mac OS X 10.10 • Mac OS X 10.11
But also says this:
Firefox For Mac Os 10.9.5
The Firefox version 48 release in August 2016 will be the last Firefox version to receive new feature or security updates on OS X systems that are no longer supported by Apple: OS X 10.6, 10.7 and 10.8. Starting with the Firefox version 49 release in September 2016, Firefox is no longer supported on OS X systems below 10.9.
Firefox Download For Mac Os X 10.9.5
So is Firefox 48 supposed to work on my OS X 10.7 or not? (I ask this because of a web site that works with Safari but not with Firefox 48.) Should I regress to version 47? Should I regress to ESR 45? If so, what happened to 46 and 47?