This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

There is a block out sign on the firefox icon that I am supposed to drag to the application. Why is that?

  • 1 antwoord
  • 2 hierdie probleem
  • 1 view
  • Laaste antwoord deur cor-el

heatherholden
heatherholden
more options

My system is Mac 10.4.11. I want to upgrade to firefox 4.1 but the icon had a block sign (∅) over it when I went to drag it to the application. Since I could find no compatibility link, I am not sure I can upgrade using my current system. What does the block out sign mean and where can I see compatibility recommendations for my system?

My system is Mac 10.4.11. I want to upgrade to firefox 4.1 but the icon had a block sign (∅) over it when I went to drag it to the application. Since I could find no compatibility link, I am not sure I can upgrade using my current system. What does the block out sign mean and where can I see compatibility recommendations for my system?

All Replies (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: