diff --git a/www/firefox/Makefile b/www/firefox/Makefile
index 91414f547556..28b3e742dec2 100644
--- a/www/firefox/Makefile
+++ b/www/firefox/Makefile
@@ -2,8 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	firefox
-DISTVERSION=	66.0.2
-PORTREVISION=	1
+DISTVERSION=	66.0.3
 PORTEPOCH=	1
 CATEGORIES=	www ipv6
 MASTER_SITES=	MOZILLA/${PORTNAME}/releases/${DISTVERSION}/source \
diff --git a/www/firefox/distinfo b/www/firefox/distinfo
index a91bc536809e..470cc482b34e 100644
--- a/www/firefox/distinfo
+++ b/www/firefox/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1553635211
-SHA256 (firefox-66.0.2.source.tar.xz) = fc37538e5852d4c97778ad7437fb1d37e9218c284ced70935378562e35184b46
-SIZE (firefox-66.0.2.source.tar.xz) = 280704196
+TIMESTAMP = 1554840099
+SHA256 (firefox-66.0.3.source.tar.xz) = 1fe4cfe4f4afce8d5532da8f36a48c333750c90a6ee67167309357edf514c22a
+SIZE (firefox-66.0.3.source.tar.xz) = 281164936