ฟอรั่มสนับสนุนของ Firefox

Is there a Firefox setting that automatically clears cookies? When I turned my computer on, it had been cleared of cookies since the last time I had it on a few hours ago, but I didn't do it. No one else here to use the computer but me. I don't want cookies cleared automatically. How do I change it back to manual? I use Firefox Browser 120.0

thank you

I have strict tracking protection turned and and i have a rule set for both https and http for bing, yahoo, and some other sites, and no matter how many times i delete their cookies from the settings menu they keep coming back and i have no idea why. I dont see a logical reasons why my extensions would be doing that