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!

ابحث في الدعم

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

Tried installing 4.0, message said system won't support, but lost 3.6

  • 1 (رد واحد)
  • 3 have this problem
  • 1 view
  • آخر ردّ كتبه dynamite

more options

I downloaded 4.0; then moved Firefox 4.0dmg into my Applications folder. When I tried to open it, I was asked if I wanted to replace a previous version, and I said Yes. Then when I tried to open 4.0, I got the message my system would not support it. Of course, I did not notice at first that the Firefox symbol had a big slash through it. In any case, I can't open 4.0 and 3.6 has disappeared from my Applications folder.

I downloaded 4.0; then moved Firefox 4.0dmg into my Applications folder. When I tried to open it, I was asked if I wanted to replace a previous version, and I said Yes. Then when I tried to open 4.0, I got the message my system would not support it. Of course, I did not notice at first that the Firefox symbol had a big slash through it. In any case, I can't open 4.0 and 3.6 has disappeared from my Applications folder.

All Replies (1)

more options

Unfortunately, Firefox supports only Mac OS X 10.5 and above on Intel hardware. The system that you are currently using is no longer supported by Firefox (details can be found here).

You can revert back to previous version of Firefox by following these steps:

  1. Open the Applications folder.
  2. Drag the Firefox application to the Trash.
  3. Download and install Firefox 3.6 from here.

If you wish to use another Firefox-like browser on your current system, you can download TenFourFox. Note that TenFourFox is not developed or endorsed by Mozilla in any way.

Modified by dynamite