Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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
Archived

How do I install the new upgrade when the system will not let me? Help!!! I have tried to do this 30 times or MORE!

bjfritch92

I tried to add upgrade but when I put the icon into my Applications there appears a white x on the icon after I have downloaded the upgrade. Sometimes a statement like; You do not have permission to use upgrade? (error message)

I tried to add upgrade but when I put the icon into my Applications there appears a white x on the icon after I have downloaded the upgrade. Sometimes a statement like; You do not have permission to use upgrade? (error message)

All Replies (1)

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 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:

Check and tell if its working.

Modified by Hasan