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What is the latest version of Firefox compatible with a MacBook Pro with 2.33 GHz Intel Core 2 Duo running OSX 10.5.8?

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I keep getting told my browser needs updating and it doesn't work right on some websites. I have had unhappy experiences in the past trying to update Apple OS and Firefox due to compatibility issues. I suppose I could switch to Safari but I have been using Firefox for many years and would prefer to stick with what I know.

I keep getting told my browser needs updating and it doesn't work right on some websites. I have had unhappy experiences in the past trying to update Apple OS and Firefox due to compatibility issues. I suppose I could switch to Safari but I have been using Firefox for many years and would prefer to stick with what I know.

Chosen solution

Firefox 16.0.2 was the last to work on the old Mac OSX 10.5.x as Firefox 17.0 to current has required OSX 10.6+

https://www.mozilla.org/en-US/firefox/16.0/system-requirements/ https://www.mozilla.org/en-US/firefox/17.0/system-requirements/

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Chosen Solution

Firefox 16.0.2 was the last to work on the old Mac OSX 10.5.x as Firefox 17.0 to current has required OSX 10.6+

https://www.mozilla.org/en-US/firefox/16.0/system-requirements/ https://www.mozilla.org/en-US/firefox/17.0/system-requirements/