diff --git a/ext/bg/js/audio-ui.js b/ext/bg/js/settings/audio-ui.js
similarity index 70%
rename from ext/bg/js/audio-ui.js
rename to ext/bg/js/settings/audio-ui.js
index 381129ac..de3be083 100644
--- a/ext/bg/js/audio-ui.js
+++ b/ext/bg/js/settings/audio-ui.js
@@ -21,7 +21,7 @@ class AudioSourceUI {
     static instantiateTemplate(templateSelector) {
         const template = document.querySelector(templateSelector);
         const content = document.importNode(template.content, true);
-        return $(content.firstChild);
+        return content.firstChild;
     }
 }
 
@@ -32,13 +32,14 @@ AudioSourceUI.Container = class Container {
         this.addButton = addButton;
         this.children = [];
 
-        this.container.empty();
+        this.container.textContent = '';
 
         for (const audioSource of toIterable(audioSources)) {
             this.children.push(new AudioSourceUI.AudioSource(this, audioSource, this.children.length));
         }
 
-        this.addButton.on('click', () => this.onAddAudioSource());
+        this._clickListener = () => this.onAddAudioSource();
+        this.addButton.addEventListener('click', this._clickListener, false);
     }
 
     cleanup() {
@@ -46,8 +47,9 @@ AudioSourceUI.Container = class Container {
             child.cleanup();
         }
 
-        this.addButton.off('click');
-        this.container.empty();
+        this.addButton.removeEventListener('click', this._clickListener, false);
+        this.container.textContent = '';
+        this._clickListener = null;
     }
 
     save() {
@@ -98,20 +100,28 @@ AudioSourceUI.AudioSource = class AudioSource {
         this.audioSource = audioSource;
         this.index = index;
 
-        this.container = AudioSourceUI.instantiateTemplate('#audio-source-template').appendTo(parent.container);
-        this.select = this.container.find('.audio-source-select');
-        this.removeButton = this.container.find('.audio-source-remove');
+        this.container = AudioSourceUI.instantiateTemplate('#audio-source-template');
+        this.select = this.container.querySelector('.audio-source-select');
+        this.removeButton = this.container.querySelector('.audio-source-remove');
 
-        this.select.val(audioSource);
+        this.select.value = audioSource;
 
-        this.select.on('change', () => this.onSelectChanged());
-        this.removeButton.on('click', () => this.onRemoveClicked());
+        this._selectChangeListener = () => this.onSelectChanged();
+        this._removeClickListener = () => this.onRemoveClicked();
+
+        this.select.addEventListener('change', this._selectChangeListener, false);
+        this.removeButton.addEventListener('click', this._removeClickListener, false);
+
+        parent.container.appendChild(this.container);
     }
 
     cleanup() {
-        this.select.off('change');
-        this.removeButton.off('click');
-        this.container.remove();
+        this.select.removeEventListener('change', this._selectChangeListener, false);
+        this.removeButton.removeEventListener('click', this._removeClickListener, false);
+
+        if (this.container.parentNode !== null) {
+            this.container.parentNode.removeChild(this.container);
+        }
     }
 
     save() {
@@ -119,7 +129,7 @@ AudioSourceUI.AudioSource = class AudioSource {
     }
 
     onSelectChanged() {
-        this.audioSource = this.select.val();
+        this.audioSource = this.select.value;
         this.parent.audioSources[this.index] = this.audioSource;
         this.save();
     }
diff --git a/ext/bg/js/settings/audio.js b/ext/bg/js/settings/audio.js
index f63551ed..2ac4590b 100644
--- a/ext/bg/js/settings/audio.js
+++ b/ext/bg/js/settings/audio.js
@@ -22,7 +22,11 @@ let audioSourceUI = null;
 async function audioSettingsInitialize() {
     const optionsContext = getOptionsContext();
     const options = await apiOptionsGet(optionsContext);
-    audioSourceUI = new AudioSourceUI.Container(options.audio.sources, $('.audio-source-list'), $('.audio-source-add'));
+    audioSourceUI = new AudioSourceUI.Container(
+        options.audio.sources,
+        document.querySelector('.audio-source-list'),
+        document.querySelector('.audio-source-add')
+    );
     audioSourceUI.save = () => settingsSaveOptions();
 
     textToSpeechInitialize();
@@ -34,24 +38,33 @@ function textToSpeechInitialize() {
     speechSynthesis.addEventListener('voiceschanged', () => updateTextToSpeechVoices(), false);
     updateTextToSpeechVoices();
 
-    $('#text-to-speech-voice-test').on('click', () => textToSpeechTest());
+    document.querySelector('#text-to-speech-voice-test').addEventListener('click', () => textToSpeechTest(), false);
 }
 
 function updateTextToSpeechVoices() {
     const voices = Array.prototype.map.call(speechSynthesis.getVoices(), (voice, index) => ({voice, index}));
     voices.sort(textToSpeechVoiceCompare);
-    if (voices.length > 0) {
-        $('#text-to-speech-voice-container').css('display', '');
-    }
 
-    const select = $('#text-to-speech-voice');
-    select.empty();
-    select.append($('<option>').val('').text('None'));
+    document.querySelector('#text-to-speech-voice-container').hidden = (voices.length === 0);
+
+    const fragment = document.createDocumentFragment();
+
+    let option = document.createElement('option');
+    option.value = '';
+    option.textContent = 'None';
+    fragment.appendChild(option);
+
     for (const {voice} of voices) {
-        select.append($('<option>').val(voice.voiceURI).text(`${voice.name} (${voice.lang})`));
+        option = document.createElement('option');
+        option.value = voice.voiceURI;
+        option.textContent = `${voice.name} (${voice.lang})`;
+        fragment.appendChild(option);
     }
 
-    select.val(select.attr('data-value'));
+    const select = document.querySelector('#text-to-speech-voice');
+    select.textContent = '';
+    select.appendChild(fragment);
+    select.value = select.dataset.value;
 }
 
 function languageTagIsJapanese(languageTag) {
@@ -78,15 +91,13 @@ function textToSpeechVoiceCompare(a, b) {
         if (bIsDefault) { return 1; }
     }
 
-    if (a.index < b.index) { return -1; }
-    if (a.index > b.index) { return 1; }
-    return 0;
+    return a.index - b.index;
 }
 
 function textToSpeechTest() {
     try {
-        const text = $('#text-to-speech-voice-test').attr('data-speech-text') || '';
-        const voiceURI = $('#text-to-speech-voice').val();
+        const text = document.querySelector('#text-to-speech-voice-test').dataset.speechText || '';
+        const voiceURI = document.querySelector('#text-to-speech-voice').value;
         const voice = audioGetTextToSpeechVoice(voiceURI);
         if (voice === null) { return; }
 
diff --git a/ext/bg/settings.html b/ext/bg/settings.html
index 3c5494b8..46184842 100644
--- a/ext/bg/settings.html
+++ b/ext/bg/settings.html
@@ -299,7 +299,7 @@
                     <input type="number" min="0" max="100" id="audio-playback-volume" class="form-control">
                 </div>
 
-                <div class="form-group" style="display: none;" id="text-to-speech-voice-container">
+                <div class="form-group" id="text-to-speech-voice-container" hidden>
                     <label for="text-to-speech-voice">Text-to-speech voice</label>
                     <div class="input-group">
                         <select class="form-control" id="text-to-speech-voice"></select>
@@ -870,7 +870,6 @@
 
         <script src="/bg/js/anki.js"></script>
         <script src="/bg/js/api.js"></script>
-        <script src="/bg/js/audio-ui.js"></script>
         <script src="/bg/js/conditions.js"></script>
         <script src="/bg/js/conditions-ui.js"></script>
         <script src="/bg/js/dictionary.js"></script>
@@ -885,6 +884,7 @@
         <script src="/bg/js/settings/anki.js"></script>
         <script src="/bg/js/settings/anki-templates.js"></script>
         <script src="/bg/js/settings/audio.js"></script>
+        <script src="/bg/js/settings/audio-ui.js"></script>
         <script src="/bg/js/settings/dictionaries.js"></script>
         <script src="/bg/js/settings/popup-preview.js"></script>
         <script src="/bg/js/settings/profiles.js"></script>