The closest you can get is the Seamonkey browser, which forked off the old Mozilla Application Suite that Netscape 6/7 was based on. The last version of Netscape 9 was just a rebranded Firefox 2.x.

Just remember we got rid of TLS 1.0 the same thing can be done with IPv4. It’s time for browser makers to put “deprecated technology” warnings on ipv4 sites.

My personal theory is that the industrial revolution created more neurodivergence. The fact that stuff like computers and trains are common obsessions means that the development of technology is making life more neurodivergent friendly. My grandfather worked for Rolls Royce so I’ve got tech genes in me.

There are a lot of decades old embedded systems out there. Every so often you hear about a big company still relying on floppy disks and other old tech, including major railways and airplane companies. Having the source code will help with debugging better than having to disassemble or other reverse engineering.