Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

4.0 doesn't work with Mac OS X 10.4.11 --> how can I downgrade?

  • 1 回覆
  • 24 有這個問題
  • 14 次檢視
  • 最近回覆由 peterroberts

more options

After upgrading to 4.0, I get the following error when trying to open Firefox: "You cannot use the application "Firefox" with this version of Mac OS X."

I am running Mac OS X 10.4.11 on an older laptop.

How can I revert to 3.6.*? I can't find any website to provide this version...

After upgrading to 4.0, I get the following error when trying to open Firefox: "You cannot use the application "Firefox" with this version of Mac OS X." I am running Mac OS X 10.4.11 on an older laptop. How can I revert to 3.6.*? I can't find any website to provide this version...

所有回覆 (2)

more options

Similar problem - I run Mac OS X 10.4.11 on an iMac and on trying to open Firefox after updating to version 4 this morning get message 'application Firefox cannot be launched -10661'

more options