Did you create cookie allow exceptions for these websites ?

Exceptions are part of the Site Preferences, so you need to keep the Site Preferences and use "Delete cookies and site data when Firefox is closed" to let other cookies expire.

In case you use "Clear history when Firefox closes" or otherwise clear history.

• do not clear the Cookies
• do not clear the Site Preferences

• Options/Preferences -> Privacy & Security
  Firefox will: "Use custom settings for history":
  [X] "Clear history when Firefox closes" -> Settings
• https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox

• clearing "Site Preferences" clears exceptions for cookies, images, pop-up windows, and software installation and exceptions for passwords and other website specific data
• clearing "Cookies" will remove all selected cookies including cookies with an allow exception you may want to keep

I have been using exceptions, but they don't work.

I've included some screen shots of my settings. Reviewed them and believe I didn't have to make any changes.

And the problem persists meaning for example the New York Times website requires me to log in every time. So something in my browser preferences is not allowing the exceptions to work. So obviously I have a conflicting setting which is negating use of the exceptions.

Thanks so much for looking at this.

Tim

I notice that you have exceptions for 'www' prefixed domains (www.nytimes.com). It is usually best to create the exception for the top level domain (https://nytime.com) to include sub domains (login pages usually use another sub domain). So you can try that to see if this makes a difference.

Thanks for your help.

Changing to the top level domain made the difference. Exceptions now seem to be working.

Awesome!