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 want to downgrade from Firefox 7.0 to 6.0.2 set up file. How do I do this?

more options

The Firefox version of 7.0 is not compatible with my on line school. They instructed me to downgrade to version 6.0.2. How do I download that version?

The Firefox version of 7.0 is not compatible with my on line school. They instructed me to downgrade to version 6.0.2. How do I download that version?

All Replies (1)

more options

Hi noobs!

All versions are listed here: https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/

Look for the version number (in your case 6.0.2) and then search in its subfolders for the right operating system.

Well, probably it's a bit too tricky, so in your case it should be either https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/6.0.2/win32/ (for any Windows)

or even more likely https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/6.0.2/mac/ (for any Apple, i.e. like OSX).

Then select by the country codes, i.e. 'en-US' for US-English and download the .exe (Windows) / .dmg (Apple) - file.

In Windows, just run the executable of the downloaded Firefox version , it will check for a previously installed version (in your case 7.01) and keeps your profile (bookmarks, passwords etc.). For Mac it should be the same routine, too lazy to test right now. Then make a fresh new install from the .exe/.dmg file.

Have fun ;)

Anyway, since i don't know how to perform a parallel install of Firefox: for security reasons you should always keep the latest version running on your system!!! If you have to downgrade, only to run a single other program, consider this great deal: go and install another browser for this task. IE, chrome, iceweasel...u name it. If it has to be Firefox, at least use another up-to-date browser for that period of time. Use it for ALL the other stuff you do on the web to stay 'safe', you never know what might happen.

Modified by 1gsdj2h6fl67gal122g4879fla