Jul 24, 2018

Enable Universal 2nd Factor (U2F) in firefox

U2F is supported by Chrome, Mozilla Firefox, and Opera. 
In Chrome, it is enabled by default.
In both Firefox and Quantum (the newer, faster version of Firefox), U2F is not enabled by default. To turn it on, type “about:config” in the browser bar, type or paste “security.webauth.u2f” and double-click the resulting entry to change the preference’s value from “false” to “true.”