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latest version firefox cannot open not supported by architecture on mac G5 with OSX 10.5.8

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Have been using firefox as preferred browser on Mac G5 OSX 10.5.8. Today, message said new version optimized for yahoo available. I downloaded it and now firefox logo has do not enter sign superimposed and when I try to open, it says can't open not supported by architecture. I can't even go back to my older version of firefox which worked perfectly. Now have to use a different browser. How can problem be solved. Appreciate your help.

Have been using firefox as preferred browser on Mac G5 OSX 10.5.8. Today, message said new version optimized for yahoo available. I downloaded it and now firefox logo has do not enter sign superimposed and when I try to open, it says can't open not supported by architecture. I can't even go back to my older version of firefox which worked perfectly. Now have to use a different browser. How can problem be solved. Appreciate your help.

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Latest versions require an Intel chip on Mac

You can try TenFourFox:


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