diff --git a/src/_locales/en/messages.json b/src/_locales/en/messages.json
index 722eb00..a9a18a7 100644
--- a/src/_locales/en/messages.json
+++ b/src/_locales/en/messages.json
@@ -567,6 +567,9 @@
   "cap_fetch": {
     "message": "fetch"
   },
+  "cap_ping": {
+    "message": "ping"
+  },
   "cap_other": {
     "message": "other"
   },
diff --git a/src/bg/main.js b/src/bg/main.js
index fa58b3a..b1874f4 100644
--- a/src/bg/main.js
+++ b/src/bg/main.js
@@ -1,6 +1,19 @@
  {
   'use strict';
-
+  {
+    let onInstalled = async details => {
+      browser.runtime.onInstalled.removeListener(onInstalled);
+      let {reason, previousVersion} = details;
+      if (reason !== "update") return;
+      let v = previousVersion.split(".").map(n => parseInt(n));
+      if (v[0] > 11 || v[1] > 0 || v[2] > 10) return;
+      log(`Upgrading from 11.0.10 or below (${previousVersion}): configure the "ping" capability.`);
+      await ns.initializing;
+      ns.policy.TRUSTED.capabilities.add("ping")
+      await ns.savePolicy();
+    };
+    browser.runtime.onInstalled.addListener(onInstalled);
+  }
   let popupURL = browser.extension.getURL("/ui/popup.html");
   let popupFor = tabId => `${popupURL}#tab${tabId}`;
 
diff --git a/src/common/Policy.js b/src/common/Policy.js
index e7818d9..4720532 100644
--- a/src/common/Policy.js
+++ b/src/common/Policy.js
@@ -274,7 +274,7 @@ var {Permissions, Policy, Sites} = (() => {
 
   }
 
-  Permissions.ALL = ["script", "object", "media", "frame", "font", "webgl", "fetch", "other"];
+  Permissions.ALL = ["script", "object", "media", "frame", "font", "webgl", "fetch", "ping", "other"];
   Permissions.IMMUTABLE = {
     UNTRUSTED: {
       "script": false,
@@ -282,6 +282,7 @@ var {Permissions, Policy, Sites} = (() => {
       "webgl": false,
       "fetch": false,
       "other": false,
+      "ping": false,
     },
     TRUSTED: {
       "script": true,
diff --git a/src/ui/ui.js b/src/ui/ui.js
index 7025ce6..dafba4f 100644
--- a/src/ui/ui.js
+++ b/src/ui/ui.js
@@ -304,7 +304,7 @@ var UI = (() => {
           capInput.id = `capability-${capability}-${idSuffix}`
           capLabel.setAttribute("for", capInput.id);
           capInput.value = capability;
-          capInput.title = capLabel.textContent = _(`cap_${capability}`);
+          capInput.title = capLabel.textContent = _(`cap_${capability}`) || capability;
           let clone = capParent.appendChild(cap.cloneNode(true));
           clone.classList.add(capability);
         }