[wrs]

I wonder (outside HN) what percentage of people who need to reverse engineer a PCB are also people who insist on Firefox. Probably smaller than the percentage of those people who want to save results to their local filesystem.

[joemi]

Firefox allows saving and loading files from the local file system. This site just uses some method to do it that's only supported by Chrome/Edge. So it's a unnecessarily user-hostile design choice they made.