--- a/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
+++ b/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
@@ -920,6 +920,8 @@
   policy->AddDir(rdonly, "/usr/lib64");
   policy->AddDir(rdonly, "/run/opengl-driver/lib");
   policy->AddDir(rdonly, "/nix/store");
+  policy->AddDir(rdonly, "/gnu/store");
+  policy->AddDir(rdonly, "/run/current-system/profile/lib");

   // Bug 1647957: memory reporting.
   AddMemoryReporting(policy.get(), aPid);