Join us and the lead editor of IRL, Mozilla's multi-award-winning podcast, for a behind-the-scenes look at the pod and to contribute your ideas for the next season, themed: "AI and ME." Mark your calendar and join our Community Call on Wednesday, Aug 7, 17:00–17:45 UTC. See you there!

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

Trying to upgrade to Firefox 4, but I keep getting a message that my "architecture" doesn't support it. I have Mac OS X 10.5.8 on a PowerPC G5. Help page says Intel processor "recommended." Does that actually mean "required"? Or is something else wrong?

  • 1 reply
  • 4 have this problem
  • 3 views
  • Last reply by cor-el

more options

Trying to upgrade to Firefox 4, but I keep getting a message that my "architecture" doesn't support it. I have Mac OS X 10.5.8 on a PowerPC G5. Help page says Intel processor "recommended." Does that actually mean "required"? Or is something else wrong?

Trying to upgrade to Firefox 4, but I keep getting a message that my "architecture" doesn't support it. I have Mac OS X 10.5.8 on a PowerPC G5. Help page says Intel processor "recommended." Does that actually mean "required"? Or is something else wrong?

All Replies (1)

more options

Firefox 4 versions and later do not run on a PowerPC Mac.

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

For an unofficial Firefox 7 compatible version (TenFourFox) that runs on PowerPC Macs with OS X 10.4.11 or OS X 10.5.8 you can look at:

Firefox 3.6.x (Mac OS X 10.4 and later) can be found here (current is 3.6.23):