Since you ask an honest question, I will give an honest answer:

> How does it work?

Poorly.

I do this because I open tabs for a project and then move on to the next thing before I finish, and serializing into a bookmark folder is more work than I'm willing to invest in the moment. I'm trying to get better at keeping work in real tickets but it's still more work than just leaving the tabs out for future-me to come back to.

I use and love the Panorama View plugin that lets me setup groups of tabs for different project. Then it is easy to switch between groups. It lets me focus the browser on just one project at a time and makes those tabs easier to deal with.

Ah I see the thinking behind it now. Wouldn’t you lose those tabs if you happen to logout or if the system restarts?

I usually have bookmark folders because I’m always afraid I might fat-finger-close a tab or something.

I'm just using the "Restore previous session" option and it seems to have worked fine. I don't specifically remember losing any sessions in a long time.

I think for over 500 tabs, one should just use bookmarks. That said, I do have more than 100 tabs open, properly managed through stacked tabs and so forth.