I've enabled GitHub's two-factor authentication, and I also use the Firefox add-on selectivecookiedelete to delete most cookies upon closing the browser. I would like to white-list GitHub's domain, however, as it's tedious to enter the two-factor authentication code every time I log in.
If I add
github.com to the white-list, however, it doesn't work.
Which cookie should I save to stay authenticated on GitHub?