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howto download and install firefox ver22?

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I tried to follow your link to download older versions https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ but do not understand how to install using that page I am currently running IE 10 only on my system, and have not attempted to download any firefox yet

I tried to follow your link to download older versions https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ but do not understand how to install using that page I am currently running IE 10 only on my system, and have not attempted to download any firefox yet

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Firefox 22 is no longer supported, as Firefox 27.0.1 is the latest release version.

http://www.mozilla.com/en-US/firefox/all.html