Arctic Fox v47.0: the modern web on PowerPC is still possible!

Posted on March 7, 2026 by Communications Team

It has been six years since we published our interview with Riccardo Mottola, one of the pillars of software development for our favorite architecture. In it, we talked about the vital importance of having an up-to-date browser to make a PowerPC computer usable in the modern world. At that time, we were anticipating the release of version 27.11.0.

Today we are happy to announce that that mission not only continues, but has reached a new, important milestone: Arctic Fox version 47.0 has been released.

While our hardware team fights with oscilloscopes and development boards, tireless developers continue to refine the software that will run on our future notebook.

Six years of evolution: from v27 to v47

The numerical leap from v27.11.0 to v47.0 represents far more than just a version bump; it signifies a massive architectural overhaul. In the silence between our blog posts, Riccardo has been relentlessly bridging the gap between legacy hardware and the increasingly complex modern web.

During these years, the focus has been on two critical fronts: compatibility and standards. The web didn’t stop evolving in 2020, and sites that worked then would be broken today without this work. Riccardo has backported hundreds of security patches and functionality updates from the Mozilla and Pale Moon codebases. This includes implementing modern TLS standards to ensure secure connections, rewriting the media backends to fix audio/video playback on Big Endian systems, and optimizing the code to leverage AltiVec instructions, ensuring that the browser feels responsive even on older G4 and G5 processors, as well as our target NXP T2080.

What’s new in v47.0?

This release is not a simple maintenance update. The recently released v47.0 brings fundamental structural changes to navigate the web of 2026 with dignity on “alternative” hardware.

Here are the main novelties extracted from the changelog:

JavaScript Engine Enhanced: Extensive updates have been made to the JavaScript engine, introducing critical new capabilities such as async functions and support for Wasm (WebAssembly). This is a giant step for compatibility with modern web apps.
Graphics and Multimedia: Significant updates in WebGL and ANGLE, as well as an update to the libcubeb library for better audio management and video playback.
Security and Core: Updates to NSS (Network Security Services) and fdlibm libraries, as well as improvements in the netwerk module, DOM, and DevTools.
Mac Compatibility: For friends following us from the vintage Apple world, the minimum target compatibility for compilation on macOS has been raised from 10.9 to 10.10, although native compilation remains possible on 10.6 and WebCam available there.

*ArcticFox running on real PowerPC G4 Hardware and GNU/Linux*

A solo journey (that needs you!)

Maintaining a fork of Firefox/Pale Moon on a Big Endian architecture like PowerPC is a huge technical challenge. It requires solving bugs that developers on x86 or ARM will never see, handling endianness, and optimizing code to exploit specific instructions like AltiVec.

We want to give special credit to Riccardo Mottola, who has been carrying this torch almost single-handedly. His dedication to keeping this browser alive is practically a solo effort, a labor of love that benefits us all. It is our sincere hope, and his too, that other developers will step forward to lend a hand. If you have experience with C++, Mozilla’s codebases, or PowerPC optimization, your contribution could make a massive difference.

Arctic Fox v47.0 is proof that planned obsolescence can be fought with code and passion. You can download the binaries for Linux PowerPC (and other architectures) directly from the official release page.

Thanks again to Riccardo for his tireless work!

Beyond the code

Riccardo’s passion for keeping classic technologies alive extends beyond computing. He is also an avid photographer with a deep respect for tradition. Coming from a family of photographers, learning the essentials from his grandfather and even using his great-grandfather’s cameras, he specializes in traditional film and manual photography. Much like his approach to software, he values the authentic process, often developing his own black-and-white film and avoiding digital manipulation. You can admire his work, which ranges from landscapes to aerial photography, in his photography portfolio.

Prototypes in production despite heavy chip shortages

Posted on October 18, 2022 by Communications Team

We were supposed to start the production of the laptop prototypes at the end of last September but we stumble upon skyrocketing prices, especially regarding four fundamental chips. We had no other choice but to pay those incredible much higher prices, the only alternative would have been to stop all our activities.

We are glad to inform you that this week the prototypes production has started and – finger crossed – we are expecting them to be ready in the beginning of November. The following are the four fundamental chips and their actual cost:

Marvell Sata 3 controller 88SE9235A1-NAA2C000, around 130 euro per piece + VAT, 1 per PCB, total 3 pieces
TPS544B20RVFT 4.5-V to 18-V, 20-A synchronous SWIFT™ buck converter with PMBus programmability and monitoring around 550 euro per piece + VAT, 1 per PCB, total 3 pieces
6-port, 12-lane, PCIe 2.0 Packet Switch PI7C9X2G612GP – Diodes around 250 euro per piece + VAT, 1 per PCB, total 3 pieces
Surge Suppressors 100V OV, UV, OC and Reverse Supply Protection Controller with -50mV Reverse Threshold LTC4368IDD-1#PBF around 100 euro per piece + VAT, 1 per PCB, total 3 pieces

The HDMI connectors (2041481-1) were completely impossible to find on the market in a reasonable amount of time. After long research, we could finally solve the problem thanks once again to the kind support of Slimbook, they will soon send us three connectors, one for each prototype.

Considering all chips, the cost of each prototype resulted 1200 euros higher than what was initially planned, 3600 euros more ( + 22% VAT) considering all three prototypes currently in production. You may find more information about these three prototypes in the post of July 2022 and May 2022.

As already stated in our post back in July, we are still asking you to continue donating as to help us supporting the dramatic increase in the actual costs we personally anticipated to proceed with the production. You may continue use the current campaign to donate.

Our presence for October-November in Free Software and IT events

We have planned our next speech at the LinuxDay in Milan (Italy) on the 22nd of October.

We are at NXP Technology Days in Milano on 27th October with our exposition, we are very glad for this opportunity that NXP has given us.

We hope to first show at least one prototype at the SFScon – Free Software Conference – on the 11th of November in Bolzano (Italy) in the occasion of our next speech.

PCB Design nearly complete, preparing for the next campaign aimed at working prototypes

Posted on December 7, 2020 by Communications Team

The campaign aimed at the “Fast simulations bus” is nearly complete, and we will receive the resulting PCB design before the end of 2020. As soon as we have reviewed it, we will publish it in our GitLab repository. Here a screenshot with the PCB design currently being finalized.

_{our PowerPC Notebook Motherboard design screenshot from Mentor Xpedition}

Similarly to what we did for the current campaign, the next donation campaign for financing the “Production of five working prototypes” will start as soon as the current campaign will reach its end. In coordination with ACube Systems, we fixed the cost of the five prototypes to 10.500 euros, and we aim at delivering them during late Spring 2021.

Freedesktop-sdk for PPC64 Big Endian Compiled!

We have patched freedeskop-sdk to compile perfectly on PPC64 so now we are preparing, according with Freedesktop-sdk teams, the merge requests to send to the mainline repository.

So we have successfully compiled 432 packages that it involves even the last version of go lang.

We thanks OSU Open Source Lab and OpenPower Foundation to provide us a Power9 VM with 8 cores and 16GB of RAM that permit us to compile Freedesktop-sdk for PPC64.

Now thanks to OpenPOWER@UNICAMP we have a Power8 VM to recompile freedesktop-sdk for PPC64 in Continuous Integration for gitlab freedesktop-sdk pipeline.

As Flatpak binary is running on Debian 10 PPC64 Big Endian and need the Freedesktop-dsk layer to prepare the flatpak packages starting from hundreds of manifests, now we are a step closer to see flatpak packages prepared for PPC64 .

Electrical Schematic v0.5 published

Posted on July 15, 2020 by Roberto Innocenti

In the last PCB update post we mentioned that a new version V. 0.5 ( June 2020) of the electrical schematics is in the works. After a few rounds of internal reviews, that new version is now finally ready to be publicly shared.

We have published in our repository this new version of the schematics.

Thanks to the project’s supporters (here a list of donors) we reached 76% of the goal of the current step.

PCB for a Happy New Year!

Posted on December 17, 2019 by Communications Team

Orcad Source Schematics Published

At the end of August of 2019 we published the first version of the schematics in pdf format. Then, in October we uploaded the second version and after that the 13th of November we released the Orcad source, accomplishing what we promised.

Schematics Source in EDIF published and ready to be converted to KiCad

Now we have exported it even to EDIF format, to make easier for new volunteers to convert it to Kicad Format. To convert from EDIF to Kicad we have found edif2kicad tools https://github.com/svn2github/edif2kicad but we are sure you will find other tools or even you will be able to create a new one