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I am running Mac 10.7.5 - which version of Firefox do I need?

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I have Mac 10.7.5 and I can't get a newer OS and I need to know which version of Firefox I need to download. Their old directory of files is extremely hard to navigate and I don't know which one I need. Please help!

I have Mac 10.7.5 and I can't get a newer OS and I need to know which version of Firefox I need to download. Their old directory of files is extremely hard to navigate and I don't know which one I need. Please help!

Chosen solution

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 on OS X 10.6, 10.7 and 10.8.

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.

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Chosen Solution

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 on OS X 10.6, 10.7 and 10.8.

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.