My Mac with OS 10.5.8 says I cannot open Firefox because it is not supported on this architecture. I tried to update my version, and this is all I get now. What can I do to use Firefox again? Thank you.

My computer is not allowing me to utilize any version of Firefox, after multiple downloading attempts. I simply get a message that Firefox is not supported on this architecture, and the Firefox icon in my toolbar now has a circle on it with a line through it (Canceled). I hope that someone can explain what I need to do to be able to use Firefox once again. Thank you, TC

As you have a PPC or Power Mac the last release form Mozilla to work on PPC is Firefox 3.6.*
Firefox 3.6.23 can be found at http://www.mozilla.com/en-US/firefox/all-older.html
Since you have a PPC Mac there is this third-party option for Firefox 7.0.1 at
http://www.floodgap.com/software/tenfourfox/
As of Firefox 4.0, a '''Intel''' Mac with OSX 10.5+ is required for Firefox builds from Mozilla. http://www.mozilla.org/en-US/firefox/7.0.1/system-requirements/

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