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Firefox 4.0 does not work on my Mac OS 10.4.11, need earlier version of Firefox back.

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I installed Firefox 4.0 yesterday on my iMac OS10.4.11. Today I get the message when trying to open Firefox in my dock "You cannot use the application "Firefox.app" with this version of Mac OS X." I am sending this message via Safari. Please help me get my older version back, please. UH

I installed Firefox 4.0 yesterday on my iMac OS10.4.11. Today I get the message when trying to open Firefox in my dock "You cannot use the application "Firefox.app" with this version of Mac OS X." I am sending this message via Safari. Please help me get my older version back, please. UH

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Firefox 4 requires at least OS X 10.5 and an Intel Mac.

For Mac OS X 10.4.11 or Mac OS X 10.5.8 you can look at:

Firefox 3.6.x can be found here: