best firefox browser version for snow leopard, lion + mtn lion 45.9.0 ESR

[chrisNova777]

http://archive.mozilla.org/pub/firefox/releases/45.9.0esr/mac/en-US/

https://support.mozilla.org/en-US/kb/firefox-osx - Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8

Firefox 45.9.0esr will be the most up to date version with security fixes that will run.

http://archive.mozilla.org/pub/firefox/releases/45.9.0esr/mac/ http://archive.mozilla.org/pub/firefox/releases/45.9.0esr/mac/en-US/

The Firefox 48.0.2 was released August 24, 2016 and is missing several security updates that the Firefox 45.9.0esr released on April 19, 2017 has.

[chrisNova777]

snow leopard was the bomb!!!   
it really sucks that the big meanies of the internet can choose to simply not support an old os.
i was a developer i understand it sucks to make your code work on 10,0000 different platforms,
ie + netscape was bad enough back in the day (given me headache just remembering) but
i really miss using snow leopard it was just a really good experience and it sucks that internet giants choose to turn there back on supporting older machines

https://parrotgeek.com/fxlegacy.html
this page has a unofficial build of 52.9.1 which is the version that still supports mavericks, yosemite + el capitan (10.9 thru 10.11)
https://www.mozilla.org/en-US/firefox/52.0esr/releasenotes/
i havent tested it on snow leopard yet because the above version (45.9) was working so awesome, no errors, no certificate problems for the most part