Tab Groups Disappear every time I reboot my computer

I am a new convert from Chrome to Firefox and have been using OneTab to keep a list of current tabs. I recently started using Firefox TabGroups to create groups to store the tabs I open the most often. After a reboot, however, all 4 of the TabGroups I created yesterday are completely gone today. As I have a water-cooled system, and don't leave my computer on overnight out of best practices, I need to be able to shut down at the end of day and come back the following day and be able to use the same TabGroups.

Any help would be greatly appreciated, Thanks!