With Firefox, how to delete all cookies except those from a custom list of whitelisted sites? (eg. google.com, stackoverflow.com... – I want to stay logged-in)
I know the "Clear all history" dialog in Firefox (see below), but I don't see how to customize which cookies to delete.
Since cookies are highly important security-wise, I would be glad to find a solution without a third-party browser extension, maybe with an internal Firefox option like about:config?
Note: here is a solution for Chrome.
Note 2: "Active logins" seems to be irrelevant here: if you entered a username and password for a site that uses HTTP basic authentication since you last opened Firefox, that login is considered "active". Clearing this will log you out of all sites that use this authentication method. It will not log you out of websites that use cookies to store login status.