diff --git a/www-client/firefox/firefox-7.0.1-r1.ebuild b/www-client/firefox/firefox-7.0.1-r1.ebuild
index 2e59824..0e4996c 100644
--- a/www-client/firefox/firefox-7.0.1-r1.ebuild
+++ b/www-client/firefox/firefox-7.0.1-r1.ebuild
@@ -21,7 +21,7 @@ HOMEPAGE="http://www.mozilla.com/firefox"
 KEYWORDS="amd64 ~ppc ~x86 ~amd64-linux ~x86-linux"
 SLOT="0"
 LICENSE="|| ( MPL-1.1 GPL-2 LGPL-2.1 )"
-IUSE="bindist +crashreporter +ipc pgo system-sqlite +webm"
+IUSE="bindist +crashreporter +ipc pgo system-sqlite +webm +jit"
 
 FTP_URI="ftp://ftp.mozilla.org/pub/firefox/releases/"
 # More URIs appended below...
@@ -228,6 +228,9 @@ src_configure() {
 	mozconfig_annotate '' --enable-safe-browsing
 	mozconfig_annotate '' --with-system-png
 	mozconfig_annotate '' --enable-system-ffi
+	if ! use jit ; then
+	        mozconfig_annotate '' --disable-methodjit
+	fi
 
 	# Other ff-specific settings
 	mozconfig_annotate '' --with-default-mozilla-five-home=${MOZILLA_FIVE_HOME}