Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8. Note: If you have Mac OS X 10.7 (Lion) or 10.6 (Snow Leopard), you will need to download OS X El Capitan before you can upgrade to the latest Mac OS. Mac OS X 10.1 (Firefox 1.0.8), OS X 10.2 and OS X 10.3 (Firefox 2.0.0.20), Mac OS X 10.4 (Firefox 3.X), Mac OS X 10.5 or above (Current Version).
Mac OS X 10.6.8 Snow Leopard is an upgrade to the previous version of OS X Leopard. This update does not have stacks of new features, rather overall improvements and efficiency upgrades. This version of Apple's OS also has a reduced footprint.
Key features include:
- Slimmer QuickTime Player: QuickTime X features a simplified GUI with a greater focus on codec support.
- Cocoa Based Finder: Finder has a new Cocoa Desktop Window and Contextual Menu.
- Safari Beta 4 Default Browser: Apple included a beta version of Safari 4 with Snow Leopard.
- Microsoft Exchange Server Support: Mac users can now connect to Microsoft Exchange 2007 servers via Mail, Address Book, and iCal.
- Faster Installation Time: Installing Snow Leopard on multiple machines takes approx 15 minutes in comparison to around an hour for Leopard.
If your Mac is operating at a slow pace, then for that reason alone it is worth the upgrade to OS X 10.6 Snow Leopard. As far as developers are concerned, the integration of Grand Central, OpenCL and a 64 bit kernel will allow you to take full advantage of the dual processing power of Intel Macs.