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TenFourFox is a fast, efficient Web browser always based on the current version of Firefox, but unlike the main distribution TenFourFox is compatible with OS X 10.4 and 10.5 running on PowerPC processors. It comes in different tuned versions for specific PowerPC processor families:

What's New

Version 45.13.0 (Feature Parity Release 4 [FPR4]):

Note: The 'Download' link yields the G5 version of TenFourFox. Additional downloads can be found in the Description.

  • Improved support for WOFF2 webfonts.
  • Support for Graphite webfonts.
  • Additional AltiVec optimizations on G4 and G5 systems.
  • Improvements to HTML5 video playback.

  • More...


  • OS X 10.4.11 or later

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TenFourFox User Discussion

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3.8 73


Current Version (45.x)


Downloads 50,583
Version Downloads 74
License Free
Date 15 Nov 2017
Platform OS X / PPC 32
Price Free