On web page http://www.mozilla.com/en-US/firefox/3.6.19/releasenotes/
You find a link
- Downloading
Mozilla provides Firefox 3.6 for Windows, Linux, and Mac OS X in a variety of languages. You can get the latest version of Firefox 3.6 here.
This link does not give you Firfox 3.6, but it gives you the bad 5.1 version to download what is not working with Tor (Vidalia).