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How to use two different versions of Firefox at the same time on Snow Leopard?

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  • Last reply by WordWeaver

WordWeaver
WordWeaver
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I recently upgraded to Firefox 4.0 on my 27" iMac running Snow Leopard 10.6.7.

Previously, I was using Google's "Page Speed" along with Firebug in Firefox 3.6.15 to optimize images in my web pages, and to find other areas to optimize.

Page Speed is not yet compatible with Firefox 4.0. I wrote to Google about this some time ago -- no answer yet.

If I run Firefox 3.6.15 in order to use Page Speed, I run into a few problems afterward when I start using Firefox 4.0 again, since they both use the same "Firefox" folder in my "Application Support" folder.

How can I set it up so that I can have two separate "Firefox" folders in my "Application Support" folder?

Or is there an easier way to use two different versions of Firefox simultaneously, even if one has extensions and/or plug-ins installed which are not compatible with the other version?

Thanks for a great browser!

I recently upgraded to Firefox 4.0 on my 27" iMac running Snow Leopard 10.6.7. Previously, I was using Google's "Page Speed" along with Firebug in Firefox 3.6.15 to optimize images in my web pages, and to find other areas to optimize. Page Speed is not yet compatible with Firefox 4.0. I wrote to Google about this some time ago -- no answer yet. If I run Firefox 3.6.15 in order to use Page Speed, I run into a few problems afterward when I start using Firefox 4.0 again, since they both use the same "Firefox" folder in my "Application Support" folder. How can I set it up so that I can have two separate "Firefox" folders in my "Application Support" folder? Or is there an easier way to use two different versions of Firefox simultaneously, even if one has extensions and/or plug-ins installed which are not compatible with the other version? Thanks for a great browser!

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WordWeaver
WordWeaver Question owner
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Please disregard my question. I just conducted more web search and learned how to use Firefox's profile manager in order to make a separate profile for Firefox 3.6.15.

You can find instructions on this page:

http://support.mozilla.com/en-US/kb/Managing%20profiles#os=mac&browser=fx35

A small tip:

If your Firefox app is named anything other than "Firefox" -- say for example "Firefox 3.6.15" -- when you follow the instructions at the above link, make sure you escape the blank space that is before the version number by adding a backward slash before it, when you type the command string in the Terminal. In other words, in that string, you should use this:

Firefox\ 3.6.15

I hope that helps someone.

WW