diff --git a/browser/components/enterprisepolicies/Policies.sys.mjs b/browser/components/enterprisepolicies/Policies.sys.mjs
index 65e979072059..0838c7bb0fb6 100644
--- a/browser/components/enterprisepolicies/Policies.sys.mjs
+++ b/browser/components/enterprisepolicies/Policies.sys.mjs
@@ -841,6 +841,14 @@ export var Policies = {
     },
   },
 
+  DisableThirdPartyModuleBlocking: {
+    onBeforeUIStartup(manager, param) {
+      if (param) {
+        manager.disallowFeature("thirdPartyModuleBlocking");
+      }
+    },
+  },
+
   DisplayBookmarksToolbar: {
     onBeforeUIStartup(manager, param) {
       let visibility;
diff --git a/browser/components/enterprisepolicies/schemas/policies-schema.json b/browser/components/enterprisepolicies/schemas/policies-schema.json
index 45a976423435..43262396ceb4 100644
--- a/browser/components/enterprisepolicies/schemas/policies-schema.json
+++ b/browser/components/enterprisepolicies/schemas/policies-schema.json
@@ -390,6 +390,10 @@
       "type": "boolean"
     },
 
+    "DisableThirdPartyModuleBlocking": {
+      "type": "boolean"
+    },
+
     "DisplayBookmarksToolbar": {
       "type": ["boolean", "string"],
       "enum": ["always", "never", "newtab"]
diff --git a/browser/locales/en-US/browser/policies/policies-descriptions.ftl b/browser/locales/en-US/browser/policies/policies-descriptions.ftl
index dd0ce0083bcc..a456af1bd9c8 100644
--- a/browser/locales/en-US/browser/policies/policies-descriptions.ftl
+++ b/browser/locales/en-US/browser/policies/policies-descriptions.ftl
@@ -88,6 +88,8 @@ policy-DisableSystemAddonUpdate = Prevent the browser from installing and updati
 
 policy-DisableTelemetry = Turn off Telemetry.
 
+policy-DisableThirdPartyModuleBlocking = Prevent the user from blocking third-party modules that get injected into the { -brand-short-name } process.
+
 policy-DisplayBookmarksToolbar = Display the Bookmarks Toolbar by default.
 
 policy-DisplayMenuBar = Display the Menu Bar by default.