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I updated my firefox, and now I'm getting an error message "You cannot use the application 'Firefox' with this version of Mac OS x" - Please help ASAP I hate Safari

Firefox
LilLisa replied 15 years ago
LilLisa
LilLisa

After an unexpected quit by firefox and an update. I can no longer use Firefox. I get an error message that says 'You cannot use the application "Firefox" with this version of Mac OS X"

After an unexpected quit by firefox and an update. I can no longer use Firefox. I get an error message that says 'You cannot use the application "Firefox" with this version of Mac OS X"

All Replies (2)

cor-el
cor-el
  • Moderator

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

For a Firefox 4 compatible version that runs on Mac OS X 10.4.11 or Mac OS X 10.5.8 (PPC) you can look at:

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