The real question is do you keep your tabs when you shut down or close them out and start over?
Firefox has been closing my tabs out when it feels the urge and not letting me save them when I shut down.
ROTFL! My son has a fit when he sees how many tabs I have open.
Once somewhere over the 20 mark Mozilla told me I had to close some tabs.
It is how I keep track of things I want to read later.
was it /s/? lol