Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox is not supported on the architecture (mac g5, os 10.5.8

  • 1 cavab
  • 55 have this problem
  • 5 views
  • Last reply by cor-el

more options

I downloaded and installed Firefox 4 this afternoon. When I tried to open it I got an error message, "You can't open the application "Firefox" because it is not supported on this architecture. I have a Mac PowerPC G5 running OS 10.5.8 I should add the the Firefox icon in the install window has the "Do not enter" icon superimposed over it'bold text'

I downloaded and installed Firefox 4 this afternoon. When I tried to open it I got an error message, "You can't open the application "Firefox" because it is not supported on this architecture. I have a Mac PowerPC G5 running OS 10.5.8 I should add the the Firefox icon in the install window has the "Do not enter" icon superimposed over it'bold text'

All Replies (1)

more options

Firefox 4 requires at least OS X 10.5 and an Intel Mac.

For Mac OS X 10.4.11 or Mac OS X 10.5.8 you can look at:

Firefox 3.6.x can be found here: