Firefox is the default web browser for CrunchBang and is available in the menu under 'Web Browser'. It is also attached to the keybinding W-w (Windows/superkey-w). Firefox in CrunchBang also has out of the box for flash video.
Addons can be installed either from the firefox website or through the top level menu under Tools –> Addons, and clicking on the Get addons tab.
(machinebacon) Nothing much to say here - or does it need more details for about:config?
at least the Ubiquity-thingy is no longer being maintained. i think it is a bit short indeed. could be more useful – rhowaldt
starting a forum-discussion on this page. i have my doubts about its usefulness. – rhowaldt
mb: proposing a deletion. Duplicate to iceweasel, but Firefox is not an official Debian package, not the default in Crunchbang and not available without changing the sources/installing 3rd party binaries.