TB 41906: Hide DNS over HTTPS preferences.

browser/components/preferences/privacy.inc.xhtml

@@ -1187,11 +1187,12 @@
 <hbox id="DoHCategory"
       class="subcategory"
       hidden="true"
-      data-category="panePrivacy">
+      data-category="panePrivacy"
+      data-hidden-from-search="true">
   <html:h1 data-l10n-id="preferences-doh-header"/>
 </hbox>
 
-<groupbox id="dohBox" data-category="panePrivacy" data-subcategory="doh" hidden="true" class="highlighting-group">
+<groupbox id="dohBox" data-category="panePrivacy" data-subcategory="doh" data-hidden-from-search="true" hidden="true" class="highlighting-group">
   <label class="search-header" searchkeywords="doh trr" hidden="true"><html:h2 data-l10n-id="preferences-doh-header"/></label>
   <vbox flex="1">
     <description id="dohDescription" class="tail-with-learn-more description-deemphasized" data-l10n-id="preferences-doh-description2"></description>