You can download Firefox 3.6 from [http://www.mozilla.org/en-US/firefox/all-older.html http://www.mozilla.org/en-US/firefox/all-older.html], which is the last version of firefox that will run on your computer. Or you can try running tenfourfox, which is a community fork that support your computer. Keep in mind running an unsupported operating system leaves you open to lots of security issues and the community Firefox may not behave properly. [http://www.floodgap.com/software/tenfourfox/ http://www.floodgap.com/software/tenfourfox/]

See also: *http://code.google.com/p/tenfourfox/wiki/ReleaseNotes1004 *http://code.google.com/p/tenfourfox/wiki/PluginsNoLongerSupported *http://code.google.com/p/tenfourfox/wiki/AAATheFAQ *http://www.macupdate.com/app/mac/37761/tenfourfox