#FIREFOX OS X 10.5 8 FOR MAC OS X#
![firefox os x 10.5 8 firefox os x 10.5 8](http://abcfail.weebly.com/uploads/1/2/5/4/125423865/254393030.jpg)
For older Macs that aren't supported in Firefox 4 thru 8, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8.
![firefox os x 10.5 8 firefox os x 10.5 8](http://lexhigh-power.weebly.com/uploads/1/2/6/5/126537562/118334560.png)
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. However, we strongly recommend you upgrade to at least OS X 10.6 Snow Leopard or higher as Firefox 16 is no longer updated by Mozilla and therefore not secure anymore.
![firefox os x 10.5 8 firefox os x 10.5 8](https://machow2.com/wp-content/uploads/2013/05/firefox-for-mac-10.5.8-mac-specs-263x300.jpg)
If you’re using OS X 10.5.8 Leopard then you can still download Firefox 16 for Macs which works on 10.5.8.