Index: mobile/android/app/src/main/res/xml/preferences_vendor.xml
===================================================================
--- a/mobile/android/app/src/main/res/xml/preferences_vendor.xml
+++ b/mobile/android/app/src/main/res/xml/preferences_vendor.xml
@@ -3,20 +3,21 @@
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
                   xmlns:gecko="http://schemas.android.com/apk/res-auto"
                   android:title="@string/pref_category_vendor"
                   android:enabled="false">
 
+    <!-- Changed about url. See https://issues.adblockplus.org/ticket/7211 -->
     <org.mozilla.gecko.preferences.LinkPreference android:key="android.not_a_preference.about.link"
                                                   android:title="@string/pref_about_firefox"
                                                   android:persistent="false"
-                                                  url="about:firefox" />
+                                                  url="about:" />
 
     <org.mozilla.gecko.preferences.LinkPreference android:key="android.not_a_preference.faq.link"
                                                   android:title="@string/pref_vendor_faqs"
                                                   android:persistent="false"/>
 
     <org.mozilla.gecko.preferences.LinkPreference android:key="android.not_a_preference.feedback.link"
                                                   android:title="@string/pref_vendor_feedback"
                                                   android:persistent="false"/>