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

How can I get 3.6 back since 4.0 won't install on my computer?

  • 1 reply
  • 8 have this problem
  • 1 view
  • Last reply by TonyE

more options

I've submitted a previous related question, but I'll try again. After downloading 4.0, I tried to move the download file to my applications folder, got a message asking if I wanted to replace a version already there, and said yes. Poof--3.6 was gone. Then when I clicked on the download file and got the screen to move Firefox to applications folder, I got the message my system would not support it. I have since deleted the download file from my applications folder, as well as all evidence on my deskbox of the download attempts. Now I am without Firefox. I'd like to get 3.6 back, and/or find out why I can't install 4.0.

I've submitted a previous related question, but I'll try again. After downloading 4.0, I tried to move the download file to my applications folder, got a message asking if I wanted to replace a version already there, and said yes. Poof--3.6 was gone. Then when I clicked on the download file and got the screen to move Firefox to applications folder, I got the message my system would not support it. I have since deleted the download file from my applications folder, as well as all evidence on my deskbox of the download attempts. Now I am without Firefox. I'd like to get 3.6 back, and/or find out why I can't install 4.0.

All Replies (1)

more options

You can get Firefox 3.6.16 from http://www.mozilla.com/en-US/firefox/all-older.html

There is a third party version of Firefox 4 that runs on OS X 10.4/10.5 and PPC Macs, for details see http://www.floodgap.com/software/tenfourfox