From December 2014...
I was awoken around 5am post-Thanksgiving Saturday by multiple text messages from Facebook instructing me to click a link and enter a code to reset my password. It seems someone decided to try and takeover my account. This led me to conclude that now would be a good time to quit putting-off enabling 2-factor authentication (2FA) for my account. What should have been a very simple process was complicated (slightly) by a degree of true derpitude: in order to enable 2FA for my account, Facebook first insisted that I change my browser configuration (or use a different browser) that wasn't set to clear cookies after each session.