Comment 6 for bug 79063

Isn't it a problem with dependencies - I see I do have libnss-dev and libnspr-dev installed, but their names just don't include 3/4 - versions match exacty installed libnspr4 and libnss3.
Maybe simple fix in dependency list (was there a typo?) would fix that problem for both libmozjs-dev and libxul-dev?

In fact, in their current state, libxul-dev and libmozjs- dev seem unusable, and compiling all those broken from sources brings us a bit too close to gentoo-like 'recompile all' approach...