diff --git a/srcpkgs/firefox-esr/template b/srcpkgs/firefox-esr/template
index 4634d5bf710..9ed53e5fa8f 100644
--- a/srcpkgs/firefox-esr/template
+++ b/srcpkgs/firefox-esr/template
@@ -134,10 +134,11 @@ do_build() {
 		build/moz.configure/toolchain.configure
 	fi
 
-	case "$XBPS_TARGET_MACHINE" in
-	aarch64*|i686*|x86_64*)
-		echo "ac_add_options --enable-rust-simd" >>.mozconfig ;;
-	esac
+	# FIXME: incompatible with rust 1.48 in this release
+	#case "$XBPS_TARGET_MACHINE" in
+	#aarch64*|i686*|x86_64*)
+	#	echo "ac_add_options --enable-rust-simd" >>.mozconfig ;;
+	#esac
 
 	export LDFLAGS+=" -Wl,-rpath=/usr/lib/firefox"