--- www/firefox/Makefile	(revision 439971)
+++ www/firefox/Makefile	(working copy)
@@ -31,6 +31,8 @@ 
 
 LIB_DEPENDS=	libv4l2.so:multimedia/libv4l
 
+BROKEN_aarch64=		fails to compile:  error: no member named cacheFlush
+
 USE_GECKO=	gecko
 CONFLICTS_INSTALL=	firefox-esr-45.* firefox-esr-3[18].* firefox-esr-24.*
 MOZ_PKGCONFIG_FILES=	# empty
--- www/firefox-esr-i18n/Makefile	(revision 439971)
+++ www/firefox-esr-i18n/Makefile	(working copy)
@@ -16,6 +16,8 @@ 
 
 EXTRACT_DEPENDS=	zip:archivers/zip
 
+BROKEN_aarch64=		fails to install: firefox- is installed and wanted version is firefox-
+
 USES=		zip:infozip gecko:firefox,build
 USE_XPI=	firefox linux-firefox
 
--- www/firefox-i18n/Makefile	(revision 439971)
+++ www/firefox-i18n/Makefile	(working copy)
@@ -16,6 +16,8 @@ 
 
 EXTRACT_DEPENDS=	zip:archivers/zip
 
+BROKEN_aarch64=		fails to install: /usr/local/bin/firefox --version 2>/dev/null exited on a signal
+
 USES=		zip:infozip gecko:firefox,53,build
 USE_XPI=	firefox