!!! One or more updates have been skipped due to a dependency conflict:

net-libs/xulrunner:1.9

  (net-libs/xulrunner-2.0-r1, ebuild scheduled for merge) conflicts with
    =net-libs/xulrunner-1.9*:1.9 required by (net-libs/libproxy-0.4.6, ebuild scheduled for merge)


!!! The following update(s) have been skipped due to unsatisfied dependencies
!!! triggered by backtracking:

www-client/firefox:0