iglunix/gui/firefox/sandbox-allow-select.patch

--- a/security/sandbox/linux/SandboxFilter.cpp
+++ b/security/sandbox/linux/SandboxFilter.cpp
@@ -1992,20 +1992,23 @@
         Arg<uintptr_t> new_limit(2);
         return If(AllOf(pid == 0, new_limit == 0), Allow())
             .Else(InvalidSyscall());
       }
 #endif  // DESKTOP

       // Bug 1640612
       case __NR_uname:
         return Allow();

+      CASES_FOR_select:
+        return Allow();
+
       default:
         return SandboxPolicyCommon::EvaluateSyscall(sysno);
     }
   }
 };

 UniquePtr<sandbox::bpf_dsl::Policy> GetSocketProcessSandboxPolicy(
     SandboxBrokerClient* aMaybeBroker) {
   return UniquePtr<sandbox::bpf_dsl::Policy>(
       new SocketProcessSandboxPolicy(aMaybeBroker));