PowerFox - A modern browser for PowerPC Macs (Mac OS X 10.5)
PowerFox Webbrowser
I just stumbled across a new browser that promises to bring a current version of Firefox to Mac OS X 10.5 PowerPC (and Intel).
Attentive readers of my weblog will know that I have a great passion for trying out modern browsers, usually paired with modern Linux PPC distributions, on my PowerPC 64-Bit PowerMac G5 and integrating them into my daily routine. Of course, this is only possible to a limited extent with a computer from 2005, but it is possible.
Powerfox Browser on Mac OS X 10.5
This is a brand-new browser with TLS 1.3, WebGL, an up-to-date Javascript engine (but no Just-In-Time-Compiling), NPAPI plugins support, and other modern features for PowerPC Macs with Leopard.
PowerFox is an open-source, up-to-date web browser that’s currently in beta, and is a gift for the PowerPC Mac platform. And even more, there are language packs for your pleasure.
My Website apfelhammer.de opens on PowerFox Browser
PowerFox Browser Leopard Beta (PowerPC & Intel)
PowerFox Browser for Intel-based Macs running Mac OS X 10.5 Leopard and PowerPC-based Macs running Mac OS X 10.5 Leopard or Mac OS X 10.6 Snow Leopard.
This is a beta release and may contain bugs or incomplete features. Please report any issues on MacRumors or GitHub.
Released February 5, 2026 Version 26.2.1 Beta Compatibility Mac OS X 10.5 or newer PowerPC G4 or PowerPC G5 or Intel processor
System Requirements:
- Mac OS X 10.5 Leopard
- PowerPC G4 or PowerPC G5 processor
- 1 GHz processor or better for proper video playback
- Also available for Intel as version 26.1.0 in 32-Bit and 64-Bit variations!
Known Issues/Limitations
- JavaScript JIT (Just-In-Time) compilation is currently unimplemented. This means that JavaScript performance will be slower than that of TenFourFox and its derivatives, please consider installing an Ad Blocker and keeping expectations within reason.
- Certain SVG images will not render correctly - under investigation.