Hi Riccardo,
thank you for your reply and insights into the matter.
I have Firefox52 and Thunderbird52 up and running on NetBSD9.2/Sparc64 compiled from pkgsrc.
Now i wanted to do the same on Debian/Sparc64, but the pkgsrc patches seem to be custom created for NetBSD by Martin Husemann, and they will not build on Debian ootb.
While NetBSD is a fine system, i can get more software to compile and run on Debian/Sparc64, like Libreoffice, xrdp-server and others. NetBSD is also missing rust and ada on sparc64.
On Debian I tried to apply various sparc64 patches i found left and right on the internet, could get pkgsrc's firefox52 and thunderbird52 to build but they will not run and bus error out in libxul.so.
So i will try soon to rebuild firefox50 from debian source package as Adrian told and try to apply some patches i found for the "[GFX1]: Unknown image format 1" errors and others that
are filling up the console.
But as these versions are old and not security fixed, it makes less and less sense to use those for anything on the internet. This led me to the fitting of Raspberry-Pis 3 into my workstations which will display their up-to-date browsers on the screen via ssh x forwarding. But of course this is cheating, i would rather have them do it natively on their own.
So I will also try to build your ArcticFox. Somehow i did not come across it yet, thank you for the suggestion.
Unfortunately i am an intermediate end user in this regard. I can apply patches, work around certain library problems and get stuff to compile, but i can't help with coding.
So if it helps at all, if someone compiles and tests it, let me know.
Sparc64 as a platform is almost dead and i know that as a result most projects still doing something for it are mostly one-man shows.
But it is still fun to have the boxes running and i am also still planning to get some of those beefier T3-T8 servers once they are cheaply available on ebay and when i have more experience in quieting them down without killing them.
Regards,
Connor