I just had to sign in to this forum although I had never logged out. I am using Firefox 143.0.3 (64-bit) on Linux Mint 22.2. It is not the first time I am having to login again in one-by-one the sites I visit. And before anything else, I have not changed any of my privacy settings and no new profile has been created due corruption of my default one. It is not the first time this happens lately. Any chance with the Firefox update? I think I installed one quite recently.