In my system i have another cm library (no lcms) that is in fact against lcms and can't be installed concurrently. but firefox and xulrunner are actually blockers cause they don't provide "lcms" use flags as other packages do. Reproducible: Always
Created attachment 189615 [details, diff] patch for www-client/mozilla-firefox-3.0.9-ebuild
*** This bug has been marked as a duplicate of bug 267656 ***
Long live the gentoo developers !