I have a Mac G4 PPC 1.5GHZ with 1.25G Ram and Mac os 10.5.8 Used to have FireFox installed on my computer until I made the mistake to try to update the program using it's built in software update feature. All went well until I tried to run Firefox after the install was complete. Up comes the message that the software is not compatible with my computers architecture. Now the install has erased my original Firefox and i cant seem to find a version anywhere that will work on a PPC. Can you assist?