Recent answers to Is it mozilla firefox version 21, 22 and 23 can work with Mac OS X 10.7.5?https://support.mozilla.org/mk/questions/10836772015-09-14T08:03:51-07:00For security reasons, you should not use such old versions of Firefox. Mozilla discloses security fl2015-09-14T08:03:51-07:00jscher2000https://support.mozilla.org/mk/questions/1083677#answer-781426<p>For security reasons, you should not use such old versions of Firefox. Mozilla discloses <a href="https://www.mozilla.org/security/known-vulnerabilities/firefox.html" rel="nofollow">security flaws</a> after each new release.
</p><p>What kind of websites is so important to you and yet so cavalier about its users' security? Can't they get their act together?
</p><p>Anyway, if you need such an old Firefox for the one site, if there isn't a way to use an up-to-date Firefox for others sites, you should use Safari or Chrome for other sites so you aren't as exposed.
</p>Firefox 21,22 and 23 for mac are here
https://ftp.mozilla.org/pub/firefox/releases/21.0/mac/en-US/
h2015-09-14T05:39:26-07:00_ikahttps://support.mozilla.org/mk/questions/1083677#answer-781358<p>Firefox 21,22 and 23 for mac are here
<a href="https://ftp.mozilla.org/pub/firefox/releases/21.0/mac/en-US/" rel="nofollow">https://ftp.mozilla.org/pub/firefox/releases/21.0/mac/en-US/</a>
<a href="https://ftp.mozilla.org/pub/firefox/releases/22.0/mac/en-US/" rel="nofollow">https://ftp.mozilla.org/pub/firefox/releases/22.0/mac/en-US/</a>
<a href="https://ftp.mozilla.org/pub/firefox/releases/23.0/mac/en-US/" rel="nofollow">https://ftp.mozilla.org/pub/firefox/releases/23.0/mac/en-US/</a>
</p><p>I don't have Macbook, so I don't know how will work on your machine.
Hence the 21 and 22 were targeted to darwin 11.2 which is bellow darwin 11.4.2 (OSX 10.7.5), most probably they should work.
</p><p>P.S Using old versions of browser can be a security risk, as they have vulnerabilities.
Avoid that ,if you can.
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