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Where can I find a download for Firefox version 3.5?

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I am currently working with a publishing platform that requires firefox version 3.5 (the company that created the site is in India and the site is not updated to newer versions). I need to download version 3.5 Firefox, otherwise the system crashes, but I can't seem to find a download for this version? Could someone please point me in the right direction? Thank you!

I am currently working with a publishing platform that requires firefox version 3.5 (the company that created the site is in India and the site is not updated to newer versions). I need to download version 3.5 Firefox, otherwise the system crashes, but I can't seem to find a download for this version? Could someone please point me in the right direction? Thank you!

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ftp://ftp.mozilla.org/pub/firefox/releases/3.5.19/win32/
just select the localization (language) that you need

Be aware - that version is no longer supported and is missing the security updates that are in newer versions of Firefox.

Modified by the-edmeister