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From where can I download Firefox 3. Firefix 4 won't work w/my current Mac op sys version

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I downloaded Firefox 4, installed, and stupidly trashed Version 3.x. Version 4 won't run on my current Mac op sys version (although the update said it would). Now I need to download Firefox 3.x in order to use it. I can't find a site that has this download available. Need help.

I downloaded Firefox 4, installed, and stupidly trashed Version 3.x. Version 4 won't run on my current Mac op sys version (although the update said it would). Now I need to download Firefox 3.x in order to use it. I can't find a site that has this download available. Need help.

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You can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html

Mozilla are working to prevent Mac users with non-compatible systems from getting the notification about Firefox 4, and also not displaying the "Download Firefox 4" button on http://www.mozilla.com

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Latest version of FF 3 (3.6.19) does not work and there is no link to the prior versions which DO work.