diff --git a/browser/components/preferences/main.inc.xhtml b/browser/components/preferences/main.inc.xhtml
index 11e2418..14aed40 100644
--- a/browser/components/preferences/main.inc.xhtml
+++ b/browser/components/preferences/main.inc.xhtml
@@ -127,7 +127,7 @@
 </hbox>
 
 <!-- Website appearance -->
-<groupbox id="webAppearanceGroup" data-category="paneGeneral" hidden="true">
+<groupbox id="webAppearanceGroup" data-category="paneGeneral" hidden="true" style="display: none">
   <html:h2 data-l10n-id="preferences-web-appearance-header"/>
   <html:div id="webAppearanceSettings">
     <description data-l10n-id="preferences-web-appearance-description"/>