Update 'config/distribution/policies.json'

✅ Added new folder in Bookmarks Menu (Ctrl+Shift+O) called "ADVANCED" that contains the more used about: pages of FF:
- about:restartrequired | (restart FF)
- about:config
- about:about
- about:policies
- about:networking
- about:profiles
- about:support
✅ Added StartPage as default search engine | Only ESR60.x
⛔️ Removed Amazon.com, eBay as suggested search engine | Only ESR60.x

config/distribution/policies.json

@@ -3,6 +3,51 @@
 
     "AppUpdateURL": "https://aus5.mozilla.org/update/6/%PRODUCT%/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%CHANNEL%/%OS_VERSION%/%SYSTEM_CAPABILITIES%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml",
 
+    "Bookmarks": [
+      {
+        "Title": "RESTART",
+        "URL": "about:restartrequired",
+        "Placement": "menu",
+        "Folder": "ADVANCED"
+      },
+      {
+        "Title": "about:config",
+        "URL": "about:config",
+        "Placement": "menu",
+        "Folder": "ADVANCED"
+      },
+      {
+        "Title": "ALL about:",
+        "URL": "about:about",
+        "Placement": "menu",
+        "Folder": "ADVANCED"
+      },
+      {
+        "Title": "POLICIES",
+        "URL": "about:policies",
+        "Placement": "menu",
+        "Folder": "ADVANCED"
+      },
+      {
+        "Title": "NETWORKING",
+        "URL": "about:networking",
+        "Placement": "menu",
+        "Folder": "ADVANCED"
+      },
+      {
+        "Title": "PROFILES",
+        "URL": "about:profiles",
+        "Placement": "menu",
+        "Folder": "ADVANCED"
+      },
+      {
+        "Title": "SUPPORT",
+        "URL": "about:support",
+        "Placement": "menu",
+        "Folder": "ADVANCED"
+      }
+    ],
+
     "CaptivePortal": false,
 
     "Certificates": {
@@ -51,12 +96,6 @@
       "Locked": true
     },
 
-    "Extensions": {
-      "Install_remove_me": ["https://addons.mozilla.org/firefox/downloads/latest/example_0-ublock-origin/latest.xpi", "//path/to/xpi"],
-      "Uninstall": ["bad_addon_id@mozilla.org", "twitter@search.mozilla.org"],
-      "Locked":  ["addon_id@mozilla.org"]
-    },
-
     "ExtensionUpdate": true,
 
     "FlashPlugin": {
@@ -130,9 +169,19 @@
     },
 
     "SearchEngines": {
-	    	"Default": "DuckDuckGo",
+	    	"Default": "StartPage",
 	    	"PreventInstalls": false,
-	    	"Remove": ["Bing", "Google", "Twitter"]
+	    	"Remove": ["Bing", "Google", "Twitter", "Amazon.com", "eBay"],
+            "Add": [
+              {
+                "Name": "StartPage",
+                "Alias": "",
+                "Description": "The world's most private search engine",
+                "URLTemplate": "https://www.startpage.com/do/search?query={searchTerms}",
+                "IconURL": "https://www.startpage.com/assets/images/logo-180x180.png",
+                "Method": "GET"
+              }
+            ]
     },
 
     "SearchSuggestEnabled": false,