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

Can you install 2 versions ( 3.6 and 8) of Firefox on a Windows 7 PC

more options

We use CAVA K12 on line school for my daughter. They limit you to IE 8 or earlier, or Firefox 3.6. I have a new Windows 7 which only uses IE9 or above or FF 3.6. Firefox 4.0 and above does not work.

I like firefox, and want the latest version benefits, so, can I have the 2 versions of FF installed 3.6 and 8.0 on Win 7 laptop ? Or Is there a way to get FF 8 to emulate FF 3.6 ?

We use CAVA K12 on line school for my daughter. They limit you to IE 8 or earlier, or Firefox 3.6. I have a new Windows 7 which only uses IE9 or above or FF 3.6. Firefox 4.0 and above does not work. I like firefox, and want the latest version benefits, so, can I have the 2 versions of FF installed 3.6 and 8.0 on Win 7 laptop ? Or Is there a way to get FF 8 to emulate FF 3.6 ?

All Replies (1)

more options

Yes, you can install two Firefox versions. You can install Firefox 3.6 in portable mode and install Firefox 8.0 in normal mode.

Install Firefox 8.0. Now download Firefox 3.6 portable from http://downloads.sourceforge.net/portableapps/FirefoxPortableLegacy36_3.6.24_English.paf.exe?download and install it.