diff --git a/pkgs/applications/networking/browsers/tor-browser-bundle/default.nix b/pkgs/applications/networking/browsers/tor-browser-bundle/default.nix
index 8b741e76559..00c2656bc71 100644
--- a/pkgs/applications/networking/browsers/tor-browser-bundle/default.nix
+++ b/pkgs/applications/networking/browsers/tor-browser-bundle/default.nix
@@ -214,6 +214,7 @@ stdenv.mkDerivation rec {
 
     // Captures store paths
     clearPref("extensions.xpiState");
+    clearPref("extensions.bootstrappedAddons");
 
     // Insist on using IPC for communicating with Tor
     //