Bug 43118: Hide feature recommendation (CFR) settings.

browser/components/preferences/main.inc.xhtml

@@ -771,7 +771,7 @@
           support-page="media-keyboard-control"
     />
   </hbox>
-  <hbox align="center" data-subcategory="cfraddons">
+  <hbox align="center" data-subcategory="cfraddons" hidden="true">
     <checkbox id="cfrRecommendations"
             class="tail-with-learn-more"
             data-l10n-id="browsing-cfr-recommendations"
@@ -781,7 +781,7 @@
           support-page="extensionrecommendations"
     />
   </hbox>
-  <hbox align="center" data-subcategory="cfrfeatures">
+  <hbox align="center" data-subcategory="cfrfeatures" hidden="true">
     <checkbox id="cfrRecommendations-features"
             class="tail-with-learn-more"
             data-l10n-id="browsing-cfr-features"