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How do I get and install an older version of Firefox to run on my Mac 10.4.11?? I mistakenly installed a new version that overrode my older version which isn't suitable for my Mac.

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  • Last reply by Rusky

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We get a message that says "You cannot use the application 'Firefox.app' with this version of Mac OS X.

How do I reinstall an older version of Firefox that works on our Mac??

We get a message that says "You cannot use the application 'Firefox.app' with this version of Mac OS X. How do I reinstall an older version of Firefox that works on our Mac??

Chosen solution

Firefox 4 versions and later do not run on a PowerPC Mac and require at least OS X 10.5 and an Intel Mac.

latest supported version for your os is 3.6.24 you can download from here:

http://www.mozilla.org/en-US/firefox/all-older.html


see also:

Installing Firefox on Mac


thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Read this answer in context 👍 4

All Replies (3)

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Chosen Solution

Firefox 4 versions and later do not run on a PowerPC Mac and require at least OS X 10.5 and an Intel Mac.

latest supported version for your os is 3.6.24 you can download from here:

http://www.mozilla.org/en-US/firefox/all-older.html


see also:

Installing Firefox on Mac


thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Modified by ideato

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For older Macs that aren't supported in Firefox 4+ versions, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 .
http://www.floodgap.com/software/tenfourfox/
http://tenfourfox.blogspot.com/
https://code.google.com/p/tenfourfox/wiki/PluginsNoLongerSupported

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Problem solved! Thanks for your help. Now, if I could just get Santa to bring me a new Mac, then I wouldn't have that problem. :-)