Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

I downloaded version 5.01 and it shows up with a crossout sign over the firefox icon but still asks if I want to replace my older version.

  • 1 பதிலளி
  • 2 இந்த பிரச்னைகள் உள்ளது
  • 8 views
  • Last reply by cor-el

I am running an old version of firefox. I downloaded the new version and when it appeared on my desktop to move it to my applications folder there was a circle with a diagonal line through it over the icon. It asks if I want to replace the older version with the newer version, but I hesitate to do that because I am afraid that firefox won't work at all then.

I am running an old version of firefox. I downloaded the new version and when it appeared on my desktop to move it to my applications folder there was a circle with a diagonal line through it over the icon. It asks if I want to replace the older version with the newer version, but I hesitate to do that because I am afraid that firefox won't work at all then.

All Replies (1)

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: