Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Pomoc pśepytaś

Glědajśo se wobšudy pomocy. Njenapominajomy was nigda, telefonowy numer zawołaś, SMS pósłaś abo wósobinske informacije pśeraźiś. Pšosym dajśo suspektnu aktiwitu z pomocu nastajenja „Znjewužywanje k wěsći daś“ k wěsći.

Learn More

Toś ta nitka jo se archiwěrowała. Pšosym stajśo nowe pšašanje, joli trjebaśo pomoc.

have updated to 4.0.1, but cannot open it

  • 1 wótegrono
  • 33 ma toś ten problem
  • 1 naglěd
  • Slědne wótegrono wót cor-el

roycarlton76
roycarlton76
more options

I have downloaded Firefox 4.0.1 onto my power PC G4 mini using mac OSX version 10.5.8. When I try to open this new version I am told “You cannot open the application Firefox because it is not supported on this architecture. What can I do? Do I have to go back to the old version? Thank you for your help.

I have downloaded Firefox 4.0.1 onto my power PC G4 mini using mac OSX version 10.5.8. When I try to open this new version I am told “You cannot open the application Firefox because it is not supported on this architecture. What can I do? Do I have to go back to the old version? Thank you for your help.

Wšykne wótegrona (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Firefox 4 doesn't run on a PowerPC Mac.

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

For an unofficial Firefox 4 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: