Someone posted recently about an oversight between latest version of xulrunner
in the tree and the version required by firefox. A fixed ebuild is in the
tree, but if you sync and update daily, firefox might fail to start and give
you this on the console:
$ Could not find compatible GRE between version 1.9.1.3 and 1.9.1.3.
^C
[1]+ Exit 1 firefox
just rebuild forefox to use the latest xulrunner
--
alan dot mckinnon at gmail dot com