diff --git a/mozilla/webshell/tests/viewer/Makefile.in b/mozilla/webshell/tests/viewer/Makefile.in
index dc9c80f7502..031b37b715e 100644
--- a/mozilla/webshell/tests/viewer/Makefile.in
+++ b/mozilla/webshell/tests/viewer/Makefile.in
@@ -43,8 +43,7 @@ EXPORT_RESOURCE_SAMPLES := \
 	$(NULL)
 
 EXPORT_RESOURCE_THROBBER := \
-	$(srcdir)/throbber/anim.gif \
-	$(srcdir)/throbber/anims00.gif \
+	$(wildcard $(srcdir)/throbber/anim*.gif) \
 	$(NULL)
 
 TOOLKIT_GFX_LIB		:= -lgfx$(MOZ_TOOLKIT)
diff --git a/mozilla/webshell/tests/viewer/makefile.win b/mozilla/webshell/tests/viewer/makefile.win
index 2adaad15af8..ae450a90301 100644
--- a/mozilla/webshell/tests/viewer/makefile.win
+++ b/mozilla/webshell/tests/viewer/makefile.win
@@ -158,6 +158,35 @@ install:: $(PROGRAM)
 	$(MAKE_INSTALL) samples\treeTest1.css $(DIST)\bin\res\samples
 	$(MAKE_INSTALL) throbber\anim.gif $(DIST)\bin\res\throbber
 	$(MAKE_INSTALL) throbber\anims00.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims01.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims02.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims03.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims04.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims05.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims06.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims07.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims08.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims09.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims10.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims11.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims12.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims13.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims14.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims15.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims16.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims17.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims18.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims19.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims20.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims21.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims22.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims23.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims24.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims25.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims26.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims27.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims28.gif $(DIST)\bin\res\throbber
+	$(MAKE_INSTALL) throbber\anims29.gif $(DIST)\bin\res\throbber
 
 clobber::
 	rm -f $(DIST)\bin\viewer.exe
@@ -193,3 +222,32 @@ clobber::
 	rm -f $(DIST)\bin\res\samples\test_lbox.html
 	rm -f $(DIST)\bin\res\throbber\anim.gif
 	rm -f $(DIST)\bin\res\throbber\anims00.gif
+	rm -f $(DIST)\bin\res\throbber\anims01.gif
+	rm -f $(DIST)\bin\res\throbber\anims02.gif
+	rm -f $(DIST)\bin\res\throbber\anims03.gif
+	rm -f $(DIST)\bin\res\throbber\anims04.gif
+	rm -f $(DIST)\bin\res\throbber\anims05.gif
+	rm -f $(DIST)\bin\res\throbber\anims06.gif
+	rm -f $(DIST)\bin\res\throbber\anims07.gif
+	rm -f $(DIST)\bin\res\throbber\anims08.gif
+	rm -f $(DIST)\bin\res\throbber\anims09.gif
+	rm -f $(DIST)\bin\res\throbber\anims10.gif
+	rm -f $(DIST)\bin\res\throbber\anims11.gif
+	rm -f $(DIST)\bin\res\throbber\anims12.gif
+	rm -f $(DIST)\bin\res\throbber\anims13.gif
+	rm -f $(DIST)\bin\res\throbber\anims14.gif
+	rm -f $(DIST)\bin\res\throbber\anims15.gif
+	rm -f $(DIST)\bin\res\throbber\anims16.gif
+	rm -f $(DIST)\bin\res\throbber\anims17.gif
+	rm -f $(DIST)\bin\res\throbber\anims18.gif
+	rm -f $(DIST)\bin\res\throbber\anims19.gif
+	rm -f $(DIST)\bin\res\throbber\anims20.gif
+	rm -f $(DIST)\bin\res\throbber\anims21.gif
+	rm -f $(DIST)\bin\res\throbber\anims22.gif
+	rm -f $(DIST)\bin\res\throbber\anims23.gif
+	rm -f $(DIST)\bin\res\throbber\anims24.gif
+	rm -f $(DIST)\bin\res\throbber\anims25.gif
+	rm -f $(DIST)\bin\res\throbber\anims26.gif
+	rm -f $(DIST)\bin\res\throbber\anims27.gif
+	rm -f $(DIST)\bin\res\throbber\anims28.gif
+	rm -f $(DIST)\bin\res\throbber\anims29.gif