--- a/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
+++ b/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
@@ -131,16 +131,19 @@ SandboxBrokerPolicyFactory::SandboxBroke
     if (NS_SUCCEEDED(rv)) {
       policy->AddDir(rdwrcr, tmpPath.get());
     }
   }
   // If the above fails at any point, fall back to a very good guess.
   if (NS_FAILED(rv)) {
     policy->AddDir(rdwrcr, "/tmp");
   }
+
+  // Bug 1308851: NVIDIA proprietary driver when using WebGL
+  policy->AddPrefix(rdwr, "/dev", "nvidia");
   mCommonContentPolicy.reset(policy);
 #endif
 }
 
 #ifdef MOZ_CONTENT_SANDBOX
 UniquePtr<SandboxBroker::Policy>
 SandboxBrokerPolicyFactory::GetContentPolicy(int aPid)
 {