diff --git a/srcpkgs/firefox/template b/srcpkgs/firefox/template
index 013422c663b..58cc021a39d 100644
--- a/srcpkgs/firefox/template
+++ b/srcpkgs/firefox/template
@@ -135,6 +135,8 @@ do_build() {
 
 	# work around large debug symbols on 32-bit hosts
 	if [ "$XBPS_WORDSIZE" = "32" ]; then
+		echo "ac_add_options --disable-debug-symbols" >>.mozconfig
+		echo "ac_add_options --disable-debug" >>.mozconfig
 		export LDFLAGS+=" -Wl,--no-keep-memory"
 		# patch the rust debug level, this is hardcoded
 		vsed -i 's/debug_info = "2"/debug_info = "0"/' \