A modern web browser for Mac OS X 10.4 Tiger on PowerPC (G3/G4/G5).
Built on the UXP/Basilisk engine, cross-compiled from Linux using GCC 15 + ld64.
- GPU-accelerated compositing via CompositorOGL (OpenGL 1.5)
- OMTC (Off-Main-Thread Compositing) for smoother UI
- GLSL 1.05 compatible shaders with constant-index workarounds
- Non-NPOT GPU fixes — buffer rotation and FBO workarounds for vintage GPUs
- G3/G4/G5 compatible — runs on any PowerPC Mac with Tiger
- Modern web standards on vintage hardware
Latest release — DMG and tarball available.
| Spec | Value |
|---|---|
| Machine | iMac G5 (PowerMac8,2) |
| CPU | PowerPC G5 2.0 GHz |
| RAM | 1 GB |
| GPU | ATI Radeon 9600, 128 MB VRAM |
| Display | 1680x1050 |
| OS | Mac OS X 10.4.11 Tiger |
- Targets
powerpc-apple-darwin8(Tiger) instead of Leopard/Snow Leopard - Cross-compiled from Linux using GCC 15.2.0 with ld64-linux linker
- GPU compositing fixes for GLSL 1.05 / OpenGL 1.5 (Radeon 9600)
- Buffer rotation disabled for non-NPOT GPUs (fixes scroll black bars)
- FBO intermediate surfaces disabled (fixes Y-flip / inverted content)
- GL context view attachment timing fix for Tiger compositor thread
- Opaque GL surface for Tiger (no rounded window corners)
- Cairo font rendering fixes for Tiger
- Smooth scrolling disabled by default (better performance on slow hardware)
- MachFox branding with OpenMoji globe icon
- 10.4 universal SDK,
-force_cpusubtype_ALLfor G3/G4/G5 compatibility
Cross-compiled from Linux — requires:
- GCC 15 + ld64 cross-compiler targeting
powerpc-apple-darwin8 - cctools-port (assembler, ar, ranlib)
- MacOSX10.4u.sdk
See mozconfig on the tiger-ppc branch for build configuration.