diff --git a/ext/bg/js/options.js b/ext/bg/js/options.js
index 8021672b..cf9af240 100644
--- a/ext/bg/js/options.js
+++ b/ext/bg/js/options.js
@@ -279,6 +279,8 @@ function profileOptionsCreateDefaults() {
             popupVerticalOffset2: 0,
             popupHorizontalTextPosition: 'below',
             popupVerticalTextPosition: 'before',
+            popupScalingFactor: 1,
+            popupScaleRelativeToPageZoom: false,
             showGuide: true,
             compactTags: false,
             compactGlossaries: false,
diff --git a/ext/bg/js/settings/main.js b/ext/bg/js/settings/main.js
index 56828a15..a5407b75 100644
--- a/ext/bg/js/settings/main.js
+++ b/ext/bg/js/settings/main.js
@@ -44,6 +44,8 @@ async function formRead(options) {
     options.general.popupVerticalOffset = parseInt($('#popup-vertical-offset').val(), 10);
     options.general.popupHorizontalOffset2 = parseInt($('#popup-horizontal-offset2').val(), 0);
     options.general.popupVerticalOffset2 = parseInt($('#popup-vertical-offset2').val(), 10);
+    options.general.popupScalingFactor = parseInt($('#popup-scaling-factor').val(), 10);
+    options.general.popupScaleRelativeToPageZoom = $('#popup-scale-relative-to-page-zoom').val() === 'true';
     options.general.popupTheme = $('#popup-theme').val();
     options.general.popupOuterTheme = $('#popup-outer-theme').val();
     options.general.customPopupCss = $('#custom-popup-css').val();
@@ -109,6 +111,8 @@ async function formWrite(options) {
     $('#popup-vertical-offset').val(options.general.popupVerticalOffset);
     $('#popup-horizontal-offset2').val(options.general.popupHorizontalOffset2);
     $('#popup-vertical-offset2').val(options.general.popupVerticalOffset2);
+    $('#popup-scaling-factor').val(options.general.popupScalingFactor);
+    $('#popup-scale-relative-to-page-zoom').val(options.general.popupScaleRelativeToPageZoom ? 'true' : 'false');
     $('#popup-theme').val(options.general.popupTheme);
     $('#popup-outer-theme').val(options.general.popupOuterTheme);
     $('#custom-popup-css').val(options.general.customPopupCss);
diff --git a/ext/bg/settings.html b/ext/bg/settings.html
index 4c973674..37ee20aa 100644
--- a/ext/bg/settings.html
+++ b/ext/bg/settings.html
@@ -237,6 +237,22 @@
                     </div>
                 </div>
 
+                <div class="form-group options-advanced">
+                    <div class="row">
+                        <div class="col-xs-6">
+                            <label for="popup-scaling-factor">Popup size multiplier</label>
+                            <input type="number" min="0" id="popup-scaling-factor" class="form-control">
+                        </div>
+                        <div class="col-xs-6">
+                            <label for="popup-scale-relative-to-page-zoom">Popup size mode</label>
+                            <select class="form-control" id="popup-scale-relative-to-page-zoom">
+                                <option value="false">Absolute</option>
+                                <option value="true">Relative to zoom level</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+
                 <div class="form-group">
                     <div class="row">
                         <div class="col-xs-6">
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 52e3a5bc..d2fe9e76 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -196,7 +196,9 @@ class Frontend extends TextScanner {
     }
 
     _updateContentScale() {
-        const contentScale = 1.0 / this._pageZoomFactor; // TODO : Use options
+        const {popupScalingFactor, popupScaleRelativeToPageZoom} = this.options.general;
+        let contentScale = popupScalingFactor;
+        if (popupScaleRelativeToPageZoom) { contentScale /= this._pageZoomFactor; }
         if (contentScale === this._contentScale) { return; }
 
         this._contentScale = contentScale;