diff --git a/src/General/Settings.coffee b/src/General/Settings.coffee
index 9032940fe..9ca9ee6e5 100644
--- a/src/General/Settings.coffee
+++ b/src/General/Settings.coffee
@@ -454,7 +454,8 @@ Settings =
     $('.warning', section).hidden = Conf['Sauce']
     ta = $ 'textarea', section
     $.get 'sauces', Conf['sauces'], (item) ->
-      (ta.value = item['sauces'])
+      ta.value = item['sauces']
+      (ta.hidden = false) # XXX prevent Firefox from adding initialization to undo queue
     $.on ta, 'change', $.cb.value
 
   advanced: (section) ->
@@ -482,6 +483,7 @@ Settings =
       for key, val of items
         input = inputs[key]
         input[if input.type is 'checkbox' then 'checked' else 'value'] = val
+        input.hidden = false # XXX prevent Firefox from adding initialization to undo queue
         if key of Settings
           Settings[key].call input
       return
diff --git a/src/General/Settings/Advanced.html b/src/General/Settings/Advanced.html
index 3934d557e..97a402c18 100644
--- a/src/General/Settings/Advanced.html
+++ b/src/General/Settings/Advanced.html
@@ -15,7 +15,7 @@
     <b>Archive Lists</b>: Each line below should be an archive list in <a href="https://github.com/MayhemYDG/archives.json/blob/gh-pages/CONTRIBUTING.md" target="_blank">this format</a> or a URL to load an archive list from.<br>
     Archive properties can be overriden by another item with the same <code>uid</code> (or if absent, its <code>name</code>).
   </div>
-  <textarea name="archiveLists" class="field" spellcheck="false"></textarea>
+  <textarea hidden name="archiveLists" class="field" spellcheck="false"></textarea>
   <button id="update-archives">Update now</button> Last updated: <time id="lastarchivecheck"></time> <label><input type="checkbox" name="archiveAutoUpdate"> Auto-update</label>
 </fieldset>
 
@@ -27,7 +27,7 @@
 
 <fieldset>
   <legend>Custom Board Navigation</legend>
-  <div><textarea name="boardnav" class="field" spellcheck="false"></textarea></div>
+  <div><textarea hidden name="boardnav" class="field" spellcheck="false"></textarea></div>
   <span class="note">New lines will be converted into spaces.</span><br><br>
   <div class="note">In the following examples for /g/, <code>g</code> can be changed to a different board ID (<code>a</code>, <code>b</code>, etc...), the current board (<code>current</code>), or the Twitter link (<code>@</code>).</div>
   <div>Board link: <code>g</code></div>
@@ -87,7 +87,7 @@
 
 <fieldset>
   <legend>Quick Reply Personas</legend>
-  <textarea class="personafield field" name="QR.personas" spellcheck="false"></textarea>
+  <textarea hidden class="personafield field" name="QR.personas" spellcheck="false"></textarea>
   <p>
     One item per line.<br>
     Items will be added in the relevant input&#039;s auto-completion list.<br>
@@ -140,7 +140,7 @@
   </legend>
   <div>For more information about customizing 4chan X&#039;s CSS, see the <a href="<%= meta.cssGuide %>" target="_blank">styling guide</a>.</div>
   <button id="apply-css">Apply CSS</button>
-  <textarea name="usercss" class="field" spellcheck="false"></textarea>
+  <textarea hidden name="usercss" class="field" spellcheck="false"></textarea>
 </fieldset>
 
 <fieldset>
@@ -149,5 +149,5 @@
     Sources from which Javascript is allowed to be loaded by <a href="http://content-security-policy.com/#source_list" target="_blank">Content Security Policy</a>.<br>
     Lines starting with a <code>#</code> will be ignored.
   </div>
-  <textarea name="jsWhitelist" class="field" spellcheck="false"></textarea>
+  <textarea hidden name="jsWhitelist" class="field" spellcheck="false"></textarea>
 </fieldset>
diff --git a/src/General/Settings/Sauce.html b/src/General/Settings/Sauce.html
index 8b4e7a6e2..46786fce6 100644
--- a/src/General/Settings/Sauce.html
+++ b/src/General/Settings/Sauce.html
@@ -14,4 +14,4 @@
   <li><code>%board</code>: Current board.</li>
   <li><code>%%</code>, <code>%semi</code>: Literal <code>%</code> and <code>;</code>.</li>
 </ul>
-<textarea name="sauces" class="field" spellcheck="false"></textarea>
+<textarea hidden name="sauces" class="field" spellcheck="false"></textarea>