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i have tried downloading firefox but the icon now has a 'no entry' sign over the firefox icon and it won't open. whats wrong!!!

Firefox
cor-el replied
eleanorsworld
eleanorsworld

I have been using firefox and was recently prompted to upgrade to a new firefox. I followed the instructions and dragged the icon into my apps folder. It had a 'no entry' sign on top of it which I didn't really understand. Now it won't start up and gives me a message saying 'You cannot open the application “Firefox” because it is not supported on this architecture'. Can you help?

I have been using firefox and was recently prompted to upgrade to a new firefox. I followed the instructions and dragged the icon into my apps folder. It had a 'no entry' sign on top of it which I didn't really understand. Now it won't start up and gives me a message saying 'You cannot open the application “Firefox” because it is not supported on this architecture'. Can you help?

All Replies (2)

Swarnava Sengupta
Swarnava Sengupta
  • Locale Leader

You can try alternate and easiest way to download

cor-el
cor-el
  • Top 25 Contributor
  • Moderator

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 8 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: