Hello. There is a list of alternatives in ``sensible-browser`` including ``www-browser``, ``x-www-browser`` etc.
This makes me think that all alternatives must be documented somewhere in debian policy. Something like "each developer of X-based browser must register it as x-www-browser alternative". However, I haven't found anything except "pager" and "editor" (section 11) Do I miss something? Thank you. Ilya.