TenFourFox
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TenFourFox 12 running under Mac OS X Tiger.
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| Initial release | November 8, 2010 |
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| Stable release | 45.8.0 (March 7, 2017) |
| Preview release | 45.9.0b1 (March 25, 2017) |
| Operating system | Mac OS X v10.4, v10.5 |
| Type | Web browser |
| License | Mozilla Public License, GNU General Public License, others |
| Website | www |
TenFourFox is a web browser based on Mozilla's Gecko layout engine. It is a port of Mozilla Firefox for PowerPC-based Macintosh computers running Mac OS X to retain compatibility with the older architecture and older versions of the operating system, and to add PowerPC-specific optimizations for improved performance. The project was started after Mozilla announced that it would not release Firefox 4 for PowerPC versions of OS X. Like Firefox, it includes compatibility with a wide range of addons, Acid2 and Acid3 compliance, and HTML 5 and CSS 3 features; however, it also includes JavaScript just-in-time compilation, custom builds for specific PowerPC processor families, and AltiVec acceleration of key media codecs. The primary maintainer is Cameron Kaiser.
The project shares administration with Classilla, a fork of Mozilla Application Suite for Mac OS 9 and Mac OS 8.6.
In 2010, Mozilla's Mike Beltzner announced that the forthcoming Firefox 4 would not be released for Power Macintosh computers, compatibility with Mac OS X Tiger having already been removed, making Firefox 3.6 the last supported release of Firefox on the older architecture and platform. Mozilla stopped making PowerPC-compatible universal builds of Firefox 4 with beta 7.
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