diff --git a/embedding/config/basebrowser-mac-macho b/embedding/config/basebrowser-mac-macho
index ee82e1c25172..e3e195e9c1e6 100644
--- a/embedding/config/basebrowser-mac-macho
+++ b/embedding/config/basebrowser-mac-macho
@@ -36,7 +36,7 @@ components/libjsdom.dylib
 libxpcom.dylib 
 libxpcom_compat.dylib
 components/libxpcom_compat_c.dylib
-
+components/xpcom_obsolete.xpt
 
 ; 
 ; Components: (need to trim fat)
diff --git a/embedding/config/basebrowser-unix b/embedding/config/basebrowser-unix
index f078e35cb186..32e055eaba25 100644
--- a/embedding/config/basebrowser-unix
+++ b/embedding/config/basebrowser-unix
@@ -35,6 +35,7 @@ components/xpcom_threads.xpt
 components/xpcom_xpti.xpt
 libxpcom_compat.so
 components/libxpcom_compat_c.so
+components/xpcom_obsolete.xpt
 
 ; xpconnect
 components/libxpconnect.so
diff --git a/embedding/config/basebrowser-win b/embedding/config/basebrowser-win
index 509805349aa9..e4119eac7a88 100644
--- a/embedding/config/basebrowser-win
+++ b/embedding/config/basebrowser-win
@@ -56,6 +56,7 @@ components\xpcom_thread.xpt
 components\xpcom_xpti.xpt
 components\mozreg.dll
 ;components\mozreg.xpt
+components\xpcom_obsolete.xpt
 
 ; xpconnect
 components\xpc3250.dll