diff --git a/www/firefox-esr/Makefile b/www/firefox-esr/Makefile
index 8b79154731e7..01f3bac3e3fb 100644
--- a/www/firefox-esr/Makefile
+++ b/www/firefox-esr/Makefile
@@ -2,11 +2,11 @@
 # $FreeBSD$
 
 PORTNAME=	firefox
-DISTVERSION=	78.8.0
+DISTVERSION=	78.9.0
 PORTEPOCH=	1
 CATEGORIES=	www
 MASTER_SITES=	MOZILLA/${PORTNAME}/releases/${DISTVERSION}esr/source \
-		MOZILLA/${PORTNAME}/candidates/${DISTVERSION}esr-candidates/build2/source
+		MOZILLA/${PORTNAME}/candidates/${DISTVERSION}esr-candidates/build1/source
 PKGNAMESUFFIX=	-esr
 DISTFILES=	${DISTNAME}esr.source${EXTRACT_SUFX}
 
diff --git a/www/firefox-esr/distinfo b/www/firefox-esr/distinfo
index 73cfa044d4ef..e9ba572232f1 100644
--- a/www/firefox-esr/distinfo
+++ b/www/firefox-esr/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1613560530
-SHA256 (firefox-78.8.0esr.source.tar.xz) = 1cf2dfdee2e31fd0a5ecced6275a33fa11bee1d2a7c65e23350b26992584a110
-SIZE (firefox-78.8.0esr.source.tar.xz) = 330937116
+TIMESTAMP = 1615839895
+SHA256 (firefox-78.9.0esr.source.tar.xz) = 8e03ac1dfc5ac804c8b13a529414a9387e0425e545bb2f4462d74c3175e64864
+SIZE (firefox-78.9.0esr.source.tar.xz) = 332717100