What is the highest Firefox version that can now be downloaded on to my Mac OSX version 10.5.8?
When I open the "Firefox" window on my computer, and then click on"About Mozilla Firefox," I read "Firefox Version 3.6.23." I assume this is the version operating now on my computer. If it isn't, because of later updates, how can I find out what the version now operating on my computer is? What is the highest compatible version I can download, and how?
Wšykne wótegrona (1)
It looks like you have a "Power PC" Mac. The last version of Firefox to support PPC Macs is 3.6. You can try TenFourFox. It's a port of the latest Firefox made for PPC Macs. It's not made by Mozilla but many PPC users are happy with it.