Why does it keep logging me out??

I recently started using Firefox on a Macbook. Until now, when I turned off my Mac and logged back in the next day, I always had to first log in to my Avira profile and then enter the Avira Password Manager password in order for the Avira Password Manager to work on my Firefox. This was not the case when I used the Brave browser before. Back then I only had to enter my Password Manager password, but not the one to log in to my Avira profile. How can I change this? Thanks for help!

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