Not Working
Firefox
Violentmonkey

Hi. I've just updated the script version to 0.4.1. You better use it directly from GitHub:
https://github.com/crabvk/userscripts/raw/refs/heads/master/soundcloud-restore-playback.user.js

Still not working

Just a reminder that the script saves positions only on tracks longer than 10 minutes.

How the F should I know about that?

Should have said that in the first place and put that on the script description

OK, I've updated the description, it should sync with GitHub soon.
BTW, it's actually 5 minutes tracks that are skipped, used to be 10.