--- comm/suite/installer/Makefile.in	2021-08-08 15:29:32.000000000 +0200
+++ comm/suite/installer/Makefile.in	2022-03-03 13:31:00.586849160 +0100
@@ -145,6 +145,10 @@
 
 include $(topsrcdir)/toolkit/mozapps/installer/packager.mk
 
+install::
+	$(NSINSTALL) -D $(DESTDIR)$(mandir)/man1
+	$(SYSINSTALL) $(IFLAGS1) $(DIST)/man/man1/$(MOZ_APP_NAME).1 $(DESTDIR)$(mandir)/man1
+
 ifeq (Darwin, $(OS_ARCH))
 BINPATH = $(_BINPATH)
 DEFINES += -DAPPNAME=$(_APPNAME)
--- build/moz.configure/old.configure	2022-01-24 23:04:14.000000000 +0100
+++ build/moz.configure/old.configure	2022-03-03 13:30:58.166918412 +0100
@@ -225,6 +225,7 @@
     '--enable-zipwriter',
     '--includedir',
     '--libdir',
+    '--mandir',
     '--no-create',
     '--prefix',
     '--with-android-distribution-directory',