a fixing a typo @atsay made (bug 833584)

apps/browse/templates/browse/personas/category_landing.html

@@ -48,7 +48,7 @@
       <a class="view-all" href="{{ url('browse.themes') }}">
         {# L10n: "Complete" is used as an adjective. "Complete Theme" means a full-featured theme. #}
         <big>{{ _('Looking for Complete Themes?') }}</big>
-        <span>{{ _('Complete Themes transform the look of your browser with styles for the window frame, buttons, tab, address bar, and menu.') }}</span>
+        <span>{{ _('Complete Themes transform the look of your browser with styles for the window frame, buttons, tabs, address bar, and menus.') }}</span>
         <b>{{ _('Start exploring') }}</b>
       </a>
     </div>