diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4a0ff76..870a3929 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,13 +7,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [Unreleased]
 
 ### Added
+
 - [#142](https://github.com/webosbrew/youtube-webos/pull/141): Blocked some additional ads (@throwaway96)
+- [#144](https://github.com/webosbrew/youtube-webos/pull/144): Added support for config change listeners (@throwaway96)
 
 ### Fixed
 
 - [#103](https://github.com/webosbrew/youtube-webos/pull/103): Fixed SponsorBlock on videos with chapters (@alyyousuf7)
 - [#131](https://github.com/webosbrew/youtube-webos/pull/131): Fixed minor README issue (@ANewDawn)
 - [#141](https://github.com/webosbrew/youtube-webos/pull/141): Fixed black background behind video menu (@throwaway96; thanks to @reisxd)
+- [#143](https://github.com/webosbrew/youtube-webos/pull/143): Fixed duplicate click bug (@throwaway96)
 
 ### Changed
 
@@ -21,6 +24,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - [#133](https://github.com/webosbrew/youtube-webos/pull/133): Changed various dev stuff (@throwaway96)
 - [#134](https://github.com/webosbrew/youtube-webos/pull/134): Refactored config/UI code (@throwaway96)
 - [#138](https://github.com/webosbrew/youtube-webos/pull/138): Changed webpack to production mode by default (@throwaway96)
+- [#145](https://github.com/webosbrew/youtube-webos/pull/145): Made observing attributes optional in waitForChildAdd() (@throwaway96)
 
 ## [0.3.2] - 2024/03/07
 
diff --git a/src/config.js b/src/config.js
index 49f9c485..3a6e976f 100644
--- a/src/config.js
+++ b/src/config.js
@@ -1,6 +1,6 @@
 const CONFIG_KEY = 'ytaf-configuration';
 
-export const configOptions = new Map([
+const configOptions = new Map([
   ['enableAdBlock', { default: true, desc: 'Enable ad blocking' }],
   ['enableSponsorBlock', { default: true, desc: 'Enable SponsorBlock' }],
   [
@@ -40,6 +40,15 @@ const defaultConfig = (() => {
   return ret;
 })();
 
+/** @type {Record<string, DocumentFragment>} as const */
+const configFrags = (() => {
+  let ret = {};
+  for (const k of configOptions.keys()) {
+    ret[k] = new DocumentFragment();
+  }
+  return ret;
+})();
+
 function loadStoredConfig() {
   const storage = window.localStorage.getItem(CONFIG_KEY);
 
@@ -63,7 +72,7 @@ function configExists(key) {
   return configOptions.has(key);
 }
 
-export function getConfigDesc(key) {
+export function configGetDesc(key) {
   if (!configExists(key)) {
     throw new Error('tried to get desc for unknown config key: ' + key);
   }
@@ -95,7 +104,38 @@ export function configWrite(key, value) {
     throw new Error('tried to write unknown config key: ' + key);
   }
 
-  console.info('Setting key', key, 'to', value);
+  const oldValue =
+    localConfig[key] !== undefined ? localConfig[key] : defaultConfig[key];
+
+  console.info('Changing key', key, 'from', oldValue, 'to', value);
   localConfig[key] = value;
   window.localStorage[CONFIG_KEY] = JSON.stringify(localConfig);
+
+  configFrags[key].dispatchEvent(
+    new CustomEvent('ytafConfigChange', {
+      detail: { key, newValue: value, oldValue }
+    })
+  );
+}
+
+/**
+ * Add a listener for changes in the value of a specified config option
+ * @param {string} key Config option to monitor
+ * @param {(evt: Event) => void} callback Function to be called on change
+ */
+export function configAddChangeListener(key, callback) {
+  const frag = configFrags[key];
+
+  frag.addEventListener('ytafConfigChange', callback);
+}
+
+/**
+ * Remove a listener for changes in the value of a specified config option
+ * @param {string} key Config option to monitor
+ * @param {(evt: Event) => void} callback Function to be called on change
+ */
+export function configRemoveChangeListener(key, callback) {
+  const frag = configFrags[key];
+
+  frag.removeEventListener('ytafConfigChange', callback);
 }
diff --git a/src/ui.js b/src/ui.js
index 16dcf4cc..3aa1aac6 100644
--- a/src/ui.js
+++ b/src/ui.js
@@ -1,7 +1,7 @@
 /*global navigate*/
 import './spatial-navigation-polyfill.js';
 import './ui.css';
-import { configRead, configWrite, getConfigDesc } from './config.js';
+import { configRead, configWrite, configGetDesc } from './config.js';
 
 // We handle key events ourselves.
 window.__spatialNavigation__.keyMode = 'NONE';
@@ -41,14 +41,22 @@ function createConfigCheckbox(key) {
   const elmInput = document.createElement('input');
   elmInput.type = 'checkbox';
   elmInput.checked = configRead(key);
-  elmInput.addEventListener('change', (evt) => {
+
+  /** @type {(evt: Event) => void} */
+  const changeHandler = (evt) => {
     configWrite(key, evt.target.checked);
+  };
+
+  elmInput.addEventListener('change', changeHandler);
+
+  configAddChangeListener(key, (evt) => {
+    elmInput.checked = evt.detail.newValue;
   });
 
   const elmLabel = document.createElement('label');
   elmLabel.appendChild(elmInput);
   // Use non-breaking space (U+00A0)
-  elmLabel.appendChild(document.createTextNode('\u00A0' + getConfigDesc(key)));
+  elmLabel.appendChild(document.createTextNode('\u00A0' + configGetDesc(key)));
 
   return elmLabel;
 }
@@ -84,7 +92,13 @@ function createOptionsPanel() {
         navigate(ARROW_KEY_CODE[evt.keyCode]);
       } else if (evt.keyCode === 13) {
         // "OK" button
-        document.querySelector(':focus').click();
+
+        // The YouTube app generates these "OK" events from clicks (including
+        // with the Magic Remote), and we don't want to send a duplicate click
+        // event for those. It seems isTrusted is only true for "real" events.
+        if (evt.isTrusted === true) {
+          document.activeElement.click();
+        }
       } else if (evt.keyCode === 27) {
         // Back button
         showOptionsPanel(false);
diff --git a/src/userScript.js b/src/userScript.js
index 0ee2da5f..cd550219 100644
--- a/src/userScript.js
+++ b/src/userScript.js
@@ -21,7 +21,8 @@ import './ui.js';
   /** @type {HTMLVideoElement} */
   const video = await waitForChildAdd(
     document.body,
-    (node) => node instanceof HTMLVideoElement
+    (node) => node instanceof HTMLVideoElement,
+    false
   );
 
   const playerCtrlObs = new MutationObserver(() => {
diff --git a/src/utils.js b/src/utils.js
index a5707c76..55519f00 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -87,14 +87,24 @@ export function handleLaunch(params) {
 }
 
 /**
- * Wait for a child element to be added that holds true for a predicate
- * @template T
- * @param {Element} parent
- * @param {(node: Node) => node is T} predicate
- * @param {AbortSignal=} abortSignal
- * @return {Promise<T>}
+ * Wait for a child element to be added for which a predicate is true.
+ *
+ * When `observeAttributes` is false, the predicate is checked only when a node
+ * is first added. If you want the predicate to run every time an attribute is
+ * modified, set `observeAttributes` to true.
+ * @template {Node} T
+ * @param {Element} parent Root of tree to watch
+ * @param {(node: Node) => node is T} predicate Function that checks whether its argument is the desired element
+ * @param {boolean} observeAttributes Also run predicate on attribute changes
+ * @param {AbortSignal=} abortSignal Signal that can be used to stop waiting
+ * @return {Promise<T>} Matched element
  */
-export async function waitForChildAdd(parent, predicate, abortSignal) {
+export async function waitForChildAdd(
+  parent,
+  predicate,
+  observeAttributes,
+  abortSignal
+) {
   return new Promise((resolve, reject) => {
     const obs = new MutationObserver((mutations) => {
       for (const mut of mutations) {
@@ -128,6 +138,10 @@ export async function waitForChildAdd(parent, predicate, abortSignal) {
       });
     }
 
-    obs.observe(parent, { subtree: true, attributes: true, childList: true });
+    obs.observe(parent, {
+      subtree: true,
+      attributes: observeAttributes,
+      childList: true
+    });
   });
 }