Fact that they survive shutdowns because they can live and travel in your bookmarks is a great feature. I use Nextcloud Bookmarks and not FF Sync and they work great.
OneTab is also a good friend. And when you outdo your RAM, the lowest resource way to preserve all your tab URLs is Save All Tab URLs addon. Lists all your URLs as plaintext, copy and paste in a text file.
Fact that they survive shutdowns because they can live and travel in your bookmarks is a great feature. I use Nextcloud Bookmarks and not FF Sync and they work great.
OneTab is also a good friend. And when you outdo your RAM, the lowest resource way to preserve all your tab URLs is Save All Tab URLs addon. Lists all your URLs as plaintext, copy and paste in a text file.