--- a/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
+++ b/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
@@ -180,17 +180,16 @@ AddLdconfigPaths(SandboxBroker::Policy* 
 }
 
 SandboxBrokerPolicyFactory::SandboxBrokerPolicyFactory()
 {
   // Policy entries that are the same in every process go here, and
   // are cached over the lifetime of the factory.
 #if defined(MOZ_CONTENT_SANDBOX)
   SandboxBroker::Policy* policy = new SandboxBroker::Policy;
-  policy->AddDir(rdwrcr, "/dev/shm");
   // Write permssions
   //
   // Bug 1308851: NVIDIA proprietary driver when using WebGL
   policy->AddFilePrefix(rdwr, "/dev", "nvidia");
 
   // Bug 1312678: radeonsi/Intel with DRI when using WebGL
   policy->AddDir(rdwr, "/dev/dri");