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Is there a way to download Firefox 4 without going on a 3rd party site? Many of my addons do not work with Firefox 5 and 6.

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Quite a few of my addons don't work with firefox 6, and I would prefer to keep them, but my pc crashed and I had to reformat. I don't want to have to go on a 3rd party site, since they could easily put a virus on my pc. I couldn't find anywhere to download it on the site. Thanks

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ftp://ftp.mozilla.org/pub/firefox/releases/4.0.1/

Just keep in mind that Firefox 5.0 was a security release for 4.0.1.