Hi sandraman, Firefox has two relevant settings on the Preferences page, Privacy & Security panel: (1) Switch Firefox from accepting all requests for persistent cookies to only setting persistent cookies for sites on your Exceptions list (all other cookies are converted to session-only cookies). <img src="https://prod-cdn.sumo.mozilla.net/uploads/images/2019-05-28-15-32-29-484d6f.png" width="500"> (2) Set Firefox to clear all cookies when it closes, without exception. <center><img src="https://prod-cdn.sumo.mozilla.net/uploads/images/2019-05-28-15-03-56-8b9d89.png" width="400"></center> Since #2 is not compatible with exceptions, you can rely on #1 instead. Note that there appears to be a bug in Firefox 67 related to having both #1 and #2: a custom home page is shown as blank (not loaded). Hopefully that will get fixed in the next couple of weeks. ''Edit: updated first image''

That first screenshot didn't include the Manage Permissions button where you enter the exception. Sorry about that. The format is: https://startpage.com

Thank you. Now Firefox and startpage are set properly.