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I have MAC OSX 10.4.11. I downloaded the English version of Firefox 4.0.I try to open, but it says"cannot open application since it is not supported on my system." What is the problem?

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  • Last reply by cor-el

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Question I have MAC OSX 10.4.11. I downloaded the English version of Firefox 4.0.I try to open, but it says"cannot open application since it is not supported on my system." What is the problem?

There are no more details. What do you need in order to answer this question?

Question I have MAC OSX 10.4.11. I downloaded the English version of Firefox 4.0.I try to open, but it says"cannot open application since it is not supported on my system." What is the problem? There are no more details. What do you need in order to answer this question?

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http://www.mozilla.com/en-US/firefox/4.0/system-requirements/
Mac Operating Systems

  • Mac OS X 10.5
  • Mac OS X 10.6

Recommended Hardware

  • Macintosh computer with an Intel x86 processor
  • 512 MB of RAM
  • 200 MB hard drive space

For older Macs that aren't supported in Firefox 4.0, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 .
http://www.floodgap.com/software/tenfourfox/

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As posted above: Firefox 4 doesn't run on a PowerPC Mac.
Firefox 4 requires at least OS X 10.5 and an Intel Mac.

Firefox 3.6.x (Mac OS X 10.4 and later) can be found here: