SessionRestore is now a native app, and can't read the old js extension format. But, you can import your sessions into SessionRestore - take a look at this post:
https://support.sweetpproductions.com/topic/582/import-data-from-sessionrestorejs-sessions-or-safari
disabling the timer for Firefox, and only removing data while Firefox is closed will avoid the corruption
Ive just cleaned up the structure a little in the forum, to hopefully make it easier to get the info you need faster.
topics may have moved, so you may need to use the search function.
Safari 13 kills extensions when you don't interact with Safari for around 10s.... this disables the timer... so it would fail often
I replied to your other thread.
The old javascript version of SessionRestore (the version you have) isn't being supported anymore. It has been deprecated in macOS Catalina
do you just want to get the last session data from safari?
you can find it here:
~/Library/Safari/LastSession.plist
No data is transmitted to mine or anyone else’s server.
SessionRestore doesn’t store anything related to your browsing history either - unless you have specifically enabled autosave. Even then the saves are only local, and you can delete an autosave session at anytime.
Safari 13 has disabled the ability for reliable autosave, as it kills the extension after around 10s of idle time.
this is the best I could come up with to get it reliably working... Ill have another look at my code, and see if I can find a better solution for an update.