diff --git a/ext/bg/guide.html b/ext/bg/guide.html
index 344a84ae..4b0835b8 100644
--- a/ext/bg/guide.html
+++ b/ext/bg/guide.html
@@ -23,11 +23,10 @@
                 </p>
 
                 <ol>
-                    <li>Left-click on the <img src="../img/icon16.png" alt> icon to enable or disable Yomichan for the current browser instance.</li>
-                    <li>Right-click on the <img src="../img/icon16.png" alt> icon and select <em>Options</em> to open the Yomichan options page.</li>
-                    <li>Import any dictionaries (bundled or custom) you wish to use for Kanji and term searches; none are imported by default.</li>
+                    <li>Click on the <img src="../img/icon16.png" alt> icon in the browser toolbar to open the Yomichan options page.</li>
+                    <li>Import the dictionaries (bundled or custom) you wish to use for term and Kanji searches.</li>
                     <li>Hold down <kbd>Shift</kbd> (or the middle mouse button) as you hover over text to see term definitions.</li>
-                    <li>Resize the definitions window by dragging the bottom-left corner inwards or outwards to make it smaller or larger.</li>
+                    <li>Click on the <img src="../fg/img/play_audio.png" alt> icon to hear the term pronounced by a native speaker (if audio is available).</li>
                     <li>Click on Kanji in the definition window to view additional information about that character.</li>
                 </ol>
             </div>
diff --git a/ext/bg/js/options.js b/ext/bg/js/options.js
index 127f0421..7a47c702 100644
--- a/ext/bg/js/options.js
+++ b/ext/bg/js/options.js
@@ -51,7 +51,7 @@ function optionsSetDefaults(options) {
 
     const combine = (target, source) => {
         for (const key in source) {
-            if (!(key in target)) {
+            if (!target.hasOwnProperty(key)) {
                 target[key] = source[key];
             }
         }
@@ -69,9 +69,6 @@ function optionsSetDefaults(options) {
 
 
 function optionsVersion(options) {
-    optionsSetDefaults(options);
-    options.version = options.version || 0;
-
     const fixups = [
         () => {
             const copy = (targetDict, targetKey, sourceDict, sourceKey) => {
@@ -125,10 +122,13 @@ function optionsVersion(options) {
         }
     ];
 
-    if (options.version < fixups.length) {
-        fixups[options.version]();
-        ++options.version;
-        optionsVersion(options);
+    optionsSetDefaults(options);
+    if (!options.hasOwnProperty('version')) {
+        options.version = fixups.length;
+    }
+
+    while (options.version < fixups.length) {
+        fixups[options.version++]();
     }
 
     return options;