diff --git a/common/components/protocols.js b/common/components/protocols.js
index 7c6a028a6..de5e50f1c 100755
--- a/common/components/protocols.js
+++ b/common/components/protocols.js
@@ -22,9 +22,7 @@ const nsIProtocolHandler = Ci.nsIProtocolHandler;
 
 const ioService = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
 
-let channel = Components.classesByID["{61ba33c0-3031-11d3-8cd0-0060b0fc14a3}"]
-                        .getService(Ci.nsIProtocolHandler)
-                        .newChannel(ioService.newURI("chrome://liberator/content/data", null, null))
+let channel = ioService.newChannel("chrome://liberator/content/data", null, null)
                         .QueryInterface(Ci.nsIRequest);
 const systemPrincipal = channel.owner;
 channel.cancel(NS_BINDING_ABORTED);
diff --git a/vimperator/Makefile b/vimperator/Makefile
index 46bad0ad2..7828ea6c3 100644
--- a/vimperator/Makefile
+++ b/vimperator/Makefile
@@ -3,8 +3,8 @@
 VERSION        = 3.16.0
 NAME           = vimperator
 UUID           = vimperator@mozdev.org
-MIN_VERSION    = 38.0
-MAX_VERSION    = 51.0
+MIN_VERSION    = 52.0
+MAX_VERSION    = 56.0
 
 -include private.properties
 
diff --git a/vimperator/NEWS b/vimperator/NEWS
index d4f155ccf..a015e6746 100644
--- a/vimperator/NEWS
+++ b/vimperator/NEWS
@@ -1,12 +1,10 @@
 201x-xx-xx:
-    * create README.md
     * new: support <label> for <input type=file>
     * new: fire 'change' event on file upload
-    * fix search highlighting (hlsearch) in firefox 51
-    * allow passing a <directory> to `:w` instead of a complete <file>
-    * fix ssl icon in statusbar
-    * fix "preferences" button in Firefox add-ons page
-    * disable urlseparator by default as its unexpected behaviour irritates users
+    * new: allow passing a <directory> to `:w` instead of a complete <file>
+    * change: disable urlseparator by default as its unexpected behaviour irritates users
+    * fix: preferences button in Firefox add-ons page not working
+    * fix: various compatibility fixes for Firefox 52 to 56
 
 2017-02-01:
     * add option 'newtaburl' to set default URL in new tabs
@@ -24,7 +22,6 @@
     * fix <P> by initializing nsITransferable before usage
     * remove uriIsPrefix, unsupported
 
-
 2016-10-05:
     * update and fix css related issues
     * fix some mispellings