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how can i download an older version of firefox

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I need to download Firefox version 3.5 for school. I am inquiring if it were at all possible to access the old versions of firefox?

I need to download Firefox version 3.5 for school. I am inquiring if it were at all possible to access the old versions of firefox?

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For those that really need an earlier version of Firefox, find your system and the Firefox version you want

in releases, download and start the install.

or with the latest of version 3
Note Mac OS X 10.4 user, and Mac OS X 10.5 users without Intel cannot upgrade to Firefox 4 or 5.

When reinstalling Firefox from a download, Firefox must be down once the installation starts.