diff --git a/js/dom.js b/js/dom.js
index 8c642244..355335c7 100644
--- a/js/dom.js
+++ b/js/dom.js
@@ -303,11 +303,18 @@ function setupLivePrefs(ids = prefs.knownKeys.filter(id => $('#' + id))) {
         'value';
   }
 
+  function isSame(el, propName, value) {
+    return el[propName] === value ||
+      typeof value === 'boolean' &&
+      el.tagName === 'SELECT' &&
+      el[propName] === `${value}`;
+  }
+
   function updateElement(id, value) {
     const el = $('#' + id);
     if (el) {
       const prop = getPropName(el);
-      if (el[prop] !== value || forceUpdate) {
+      if (!isSame(el, prop, value) || forceUpdate) {
         el[prop] = value;
         el.dispatchEvent(new Event('change', {bubbles: true}));
       }
diff --git a/js/prefs.js b/js/prefs.js
index 4b1a3229..aed66215 100644
--- a/js/prefs.js
+++ b/js/prefs.js
@@ -177,7 +177,6 @@
         if (type === 'string') val = String(val);
         if (type === 'number') val = Number(val) || 0;
         if (type === 'boolean') val = val === 'true' || val !== 'false' && Boolean(val);
-        // 'true' and 'false' strings are used by manage.html in `.invert` elements
       }
       if (val !== oldValue && !simpleDeepEqual(val, oldValue)) {
         values[key] = val;