3

Can anyone else reproduce this while having Firefox NEVER remember passwords:

  • open Firefox ESR
  • log into Facebook
  • x out of the Facebook tab
  • open a new tab
  • click on the Facebook thumbnail
  • does it log you in automatically? (cause it does me!!!)

I have my Firefox security settings to NEVER remember passwords for sites, and for Facebook I always just close the option to click on my face to log in.

In my previous OS (Ubuntu 16.4.3) this behaviour wasn't happening (same browser) And if I close the whole Firefox program and open it again, it won't log in automatically.

I'm a security n00b so maybe someone just needs to explain what's happening behind the scenes here?

5

I have my Firefox security settings to NEVER remember passwords for sites

This just means that Firefox doesn't save the password itself.

Once you're logged in, Firefox stores a session cookie to remember you as a Facebook user without needing you to re-enter the password. This cookie doesn't automatically expire once you close the tab. So although your password value won't be remembered, your session will be.

  • If you want Firefox to forget about your Facebook session once you close the window, you can use a private browsing window. (Ctrl + Shift + P)

  • If you want Firefox to forget about your Facebook session once you quit the browser, you can change that in the settings. Go to Preferences > Privacy & Security > History. Choose Use custom setting for history and at Accept cookies from websites set Keep until I close Firefox:

    (Image source)

  • There are also add-ons that will let you choose whether you want to keep cookies or not on a per-domain basis. – FMaz Oct 24 '17 at 13:17

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