AmiZilla was an ongoing project sponsored by DiscreetFX which tried to port the Mozilla Firefox browser - and other Mozilla projects - to AmigaOS, MorphOS and AROS, and to fund efforts for achieving that goal.
There were certain rules for AmiZilla project to be accomplished by those developers, who wanted to achieve the full prize bounty. The main rule was the fact, that AmiZilla should be an open source port of any of the Mozilla/Firefox browsers to AmigaOS and other Amiga-inspired platforms (MorphOS and AROS).
The only team, which officially announced to work on the bounty, created a public SourceForge source code repository, but only a few developers joined and not very much source code was committed. So the project died before it could reach any results.
Despite its apparent lack of success, the AmiZilla Bounty Project inspired many bounty systems that were created upon AmiZilla's example.
A separate effort to port Firefox to AmigaOS 4 was started in early 2009 and still ongoing. It is named "Project Timberwolf". Screen shots and more information about Timberwolf was made public in November 2009, some days before AmiZilla project was closed abruptly, and then, on June 9, 2010, an alpha release of Timberwolf was made available for free download on pages the Project Timberwolf site. A beta of Timberwolf for AmigaOS 4.1 came out on February 16, 2012.