Firefox 4 won't start on Mac OS X 10.4.11.
I get an error message from Firefox 4, saying it won't run on this level of operating system.
CPU 2 GHz Intel Core 2 Duo.
I had to go back to 3.16
Helpful replies
Firefox 4 requires at least OS X 10.5 and an Intel Mac.
For an unofficial Firefox 4 compatible version that runs on Mac OS X 10.4.11 or Mac OS X 10.5.8 (PowerPC) you can look at:
Firefox 3.6.x (Mac OS X 10.4 and later) can be found here:
Go to answer 4Additional System Details
This happened
Every time Firefox opened
Installed Plug-ins
- 1.1.7
- Gecko default plugin
- Runs Java applets using the latest installed versions of Java. For more information: Java Embedding Plugin. Run version test: Java Information.
- RealPlayer Plugin
- iPhoto6
- 4.0.60129.0
- Shockwave Flash 10.2 r152
- The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
Application
- User Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.4; en-US; rv:1.9.2.15) Gecko/20110303 Firefox/3.6.15
More Information
Firefox 4 requires at least OS X 10.5
I attempted to download Firefox 4 because Firefox said it was compatible with Mac OS 4. I have OS 10.4.11. In attempting to download the downloader stated that I had a higher level of Firefox in applications and was attempting to download a lowever version. It asked if I wanted to do that or cancel so I canceled. Why does Firefox say that version 4 is compaitble with OS 4 when it obviously is not. Or should I have downloaded the newer version I thought I was downloading even though Firefox said I was downloading a version older than 3.6.17. The whole experience is very confusing and probably wrong. What's the right answer?
Helpful Reply
Firefox 4 requires at least OS X 10.5 and an Intel Mac.
For an unofficial Firefox 4 compatible version that runs on Mac OS X 10.4.11 or Mac OS X 10.5.8 (PowerPC) you can look at:
Firefox 3.6.x (Mac OS X 10.4 and later) can be found here: