Just like what Juan said, ephemeral, it does not keep the config and tabs on the browser after restart.

Ephemeral. I spent a good time setting all my workspaces with the hope they will show again once I start Firefox later on... all tabs and workspaces gone. Don't waste your time with this.

could u make it so that i can transfer workspaces between 2 or more PCs? I would love it if I could work on a few workspaces on one place of the campus and when i go to a new part of the campus, I want to continue using those workspaces.

Thanks!