Continually signed out of everything!

I am continually signed out of all websites, Amazon, Facebook, Hotmail etc etc. I have tried to work out if it’s a cookies setting but just cannot find the reason. I am on a Macbook pro, so not sure if I have inadvertently set something in security within preferences. Any help would be hugely appreciated!

@GroverPavlova,
Can you go to Settings --> Shields and tell me what your default Shields settings are configured to? Additionally, can you check Settings --> History --> Clear browsing data --> [on exit] and see if you have any boxes here checked?

Show the number of blocked items on the Shields icon ON

Trackers & ads blocking STANDARD

Upgrade connections to HTTPS OFF

Block scripts OFF

Cookie blocking DISABLED

Fingerprinting blocking STANDARD