diff --git a/distribution/policies.json b/distribution/policies.json
index 3779ebe..32aa867 100644
--- a/distribution/policies.json
+++ b/distribution/policies.json
@@ -61,7 +61,16 @@
         },
 
         "Extensions": {
-            "Install": ["https://addons.mozilla.org/firefox/downloads/file/3579401/ublock_origin-1.27.10-an+fx.xpi"]
+            "Install": [
+                "https://addons.mozilla.org/firefox/downloads/file/3579401/ublock_origin-1.27.10-an+fx.xpi"
+            ],
+            "Uninstall": [
+                "google@search.mozilla.org",
+                "bing@search.mozilla.org",
+                "amazondotcom@search.mozilla.org",
+                "ebay@search.mozilla.org",
+                "twitter@search.mozilla.org"
+            ]
         },
 
         "SearchSuggestEnabled": false,