Safari randomly and periodically loses cookies

It's been a while now that I'm facing this issue. From time to time, and on some websites, I have to either:

  • Accept again the cookies, and/or
  • Login again.

I'm using macOS 10.14.4 and Safari 12.1. It's quite annoying. Any suggestion?


It could be of because reasons mainly,

  1. Any unwanted extension that is supposed to behave this way
  2. Some software running in background to clear caches for freeing up space
  3. Browsing in Incognito Mode

As part of tracking prevention measures browsers may cap expiration at a certain time, especially for client-side written cookies. At the time of writing this is the case for Safari (7 days/24 hours) and Brave (7 days). https://www.cookiestatus.com/ provides an overview.