From the pwdhash page: "Occasionally, users want to login to their web accounts on machines where they cannot install browser extensions (e.g. at Internet cafes

From the pwdhash page: "Occasionally, users want to login to their web accounts on machines where they cannot install browser extensions (e.g. at Internet cafes). In this case users can connect to our web site https://www.pwdhash.com https://www.pwdhash.com where they are presented with one of the following forms, depending on whether their browser supports clipboard operations via script." (Of course, copy and paste is not exactly convenient in mobile browsers, but it's at least possible on most newer ones.)