Bug 1418314: Make the learn more links in plugin details work properly again. r=aswan

MozReview-Commit-ID: BZJ4XPiX0Uc

--HG--
extra : rebase_source : 403c62ab7d6595a2a2621dfe595925edbde9eb77

toolkit/mozapps/extensions/content/pluginPrefs.xul

@@ -40,14 +40,16 @@
         <row id="pluginFlashBlocking" class="detail-row-complex">
           <vbox>
             <label>&plugin.enableBlocklists.label;</label>
-            <label class="preferences-learnmore text-link">&setting.learnmore;</label>
+            <label class="preferences-learnmore text-link"
+                   href="https://support.mozilla.org/kb/flash-blocklists">&setting.learnmore;</label>
           </vbox>
           <checkbox id="pluginFlashBlockingCheckbox"/>
         </row>
         <row id="pluginEnableProtectedMode" class="detail-row-complex">
           <vbox>
             <label>&plugin.flashProtectedMode.label;</label>
-            <label class="preferences-learnmore text-link">&setting.learnmore;</label>
+            <label class="preferences-learnmore text-link"
+                   href="https://support.mozilla.org/kb/flash-protected-mode-settings">&setting.learnmore;</label>
           </vbox>
           <checkbox id="pluginEnableProtectedModeCheckbox"/>
         </row>