This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I need to downgrade to Firefox 5 to execute cross browser testing. Where can I get Firefox 5 download?

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by ideato

more options

I have a requirement to test a web development project on Firefox 5. I have been unable to find a download for Firefox 5. Where can I find a download of this version of the browser?

I have a requirement to test a web development project on Firefox 5. I have been unable to find a download for Firefox 5. Where can I find a download of this version of the browser?

All Replies (1)

more options

All versions:

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

BUT keep in mind that the older versions aren't supported any longer and are missing hundreds of security patches that are in the latest versions of Firefox.

thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.