--- a/js/xpconnect/wrappers/XrayWrapper.h
+++ b/js/xpconnect/wrappers/XrayWrapper.h
@@ -492,16 +492,24 @@ class XrayWrapper : public Base {
 #define PermissiveXrayXPCWN xpc::XrayWrapper<js::CrossCompartmentWrapper, xpc::XPCWrappedNativeXrayTraits>
 #define SecurityXrayXPCWN xpc::XrayWrapper<js::CrossCompartmentSecurityWrapper, xpc::XPCWrappedNativeXrayTraits>
 #define PermissiveXrayDOM xpc::XrayWrapper<js::CrossCompartmentWrapper, xpc::DOMXrayTraits>
 #define SecurityXrayDOM xpc::XrayWrapper<js::CrossCompartmentSecurityWrapper, xpc::DOMXrayTraits>
 #define PermissiveXrayJS xpc::XrayWrapper<js::CrossCompartmentWrapper, xpc::JSXrayTraits>
 #define PermissiveXrayOpaque xpc::XrayWrapper<js::CrossCompartmentWrapper, xpc::OpaqueXrayTraits>
 #define SCSecurityXrayXPCWN xpc::XrayWrapper<js::SameCompartmentSecurityWrapper, xpc::XPCWrappedNativeXrayTraits>
 
+extern template class PermissiveXrayXPCWN;
+extern template class SecurityXrayXPCWN;
+extern template class PermissiveXrayDOM;
+extern template class SecurityXrayDOM;
+extern template class PermissiveXrayJS;
+extern template class PermissiveXrayOpaque;
+extern template class PermissiveXrayXPCWN;
+
 class SandboxProxyHandler : public js::Wrapper {
 public:
     constexpr SandboxProxyHandler() : js::Wrapper(0)
     {
     }
 
     virtual bool getOwnPropertyDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy,
                                           JS::Handle<jsid> id,