if it isn't saved, you can't restore it unfortunately...
you'll need to configure SessionRestore to save more sessions:
Screenshot 2024-06-20 at 8.49.59 PM.png
SessionRestore not doesn't have access to a tab until it has loaded, so after restarting Safari - SessionRestore basically can't see any tabs until they have become active and loaded...
sorry about the delay.
I don't currently have a manual, but the following Settings will probably give you a reasonable start:
Screenshot 2023-03-05 at 1.22.03 pm.png
@SweetP I would say it's better. I'm not keeping track of time Safari is up front but sometimes I just leave the Safari screen up for an hour or two yet nothing is saved. So it's unpredictable but, yes, I AM getting occasional saves, which is probably sufficient.
Perhaps when a screen saver kicks in Safari no longer is seen as active?
@nelly I am experiencing same issue on macOS 11.6.2
It's become so unpredictable that I had to stop using it. After some time I decided to seek support and found your post here. Rather than creating a new post I'd like to vote on this.
@joe-l there are no APIs from Apple to get data on tab groups... When (If) Apple adds support for this, then I'll also update with tab group support...