diff --git a/config.js b/config.js
index 8f0baca..f6f4723 100644
--- a/config.js
+++ b/config.js
@@ -43,6 +43,7 @@ exports.ids = {
     'khgbdhkpcapllhgfekjegcinegfhjbmi', // YVAD by (Opera) [By @InBasic]
     'cehiomcamjpnfmemkmpjadaclohoibgo', // Open in PDF viewer (Chrome)
     'honagjpkinogkppkapphkpdffnegagge', // Open in PDF viewer (Opera)
+    'ciphgjdgpkhlngiadnpebblpcjcoabcp', // Open in PDF viewer (Edge)
     'nfpgfobeckckemhmggkdfjkjaiikadnd', // Open in Yandex (Chrome)
     'dlobcokaeaiaihfebfhpdoongldphgkf', // Open in Yandex (Opera)
     'bffjckjhidlcnenenacdahhpbacpgapo', // Country Flags (Chrome)
@@ -62,6 +63,7 @@ exports.ids = {
     'mgmnomlncpmfgelhofilonnecmbdaoia', // Open in Brave (Chrome) [By @brian-girko]
     'pfenoignchfmjmphnpfihgockdhejcjf', // Open in Sumatra (Chrome)
     'ojmcfmboidiokgkgmilnmjnjkdbgakpn', // Open in Sumatra (Opera)
+    'alighchillgifpgaigbgnmhnndoecalj', // TESSST
   ],
   firefox: [
     '{b8fa78dd-dae1-4839-9d0e-ce5e213083ce}', // Open in GIMP
diff --git a/host.js b/host.js
index 4cece79..80c2c79 100755
--- a/host.js
+++ b/host.js
@@ -20,7 +20,7 @@ let files = [];
 const sprocess = [];
 
 const config = {
-  version: '0.8.8'
+  version: '0.8.9'
 };
 // closing node when parent process is killed
 process.stdin.resume();
diff --git a/messaging.js b/messaging.js
index d62ec9c..518c034 100644
--- a/messaging.js
+++ b/messaging.js
@@ -7,119 +7,119 @@
 // - Transform - transform message objects to reply objects
 // - Debug - transform JavaScript objects to lines of JSON (for debugging, obviously)
 
-var stream = require('stream');
-var util = require('util');
+const stream = require('stream');
+const util = require('util');
 
 function Input() {
-    stream.Transform.call(this);
+  stream.Transform.call(this);
 
-    // Transform bytes...
-    this._writableState.objectMode = false;
-    // ...into objects.
-    this._readableState.objectMode = true;
+  // Transform bytes...
+  this._writableState.objectMode = false;
+  // ...into objects.
+  this._readableState.objectMode = true;
 
-    // Unparsed data.
-    this.buf = new Buffer(0);
-    // Parsed length.
-    this.len = null;
+  // Unparsed data.
+  this.buf = Buffer.alloc(0);
+  // Parsed length.
+  this.len = null;
 }
 
 util.inherits(Input, stream.Transform);
 
 Input.prototype._transform = function(chunk, encoding, done) {
-    // Save this chunk.
-    this.buf = Buffer.concat([ this.buf, chunk ]);
-
-    var self = this;
-
-    function parseBuf() {
-        // Do we have a length yet?
-        if (typeof self.len !== 'number') {
-            // Nope. Do we have enough bytes for the length?
-            if (self.buf.length >= 4) {
-                // Yep. Parse the bytes.
-                self.len = self.buf.readUInt32LE(0);
-                // Remove the length bytes from the buffer.
-                self.buf = self.buf.slice(4);
-            }
-        }
-
-        // Do we have a length yet? (We may have just parsed it.)
-        if (typeof self.len === 'number') {
-            // Yep. Do we have enough bytes for the message?
-            if (self.buf.length >= self.len) {
-                // Yep. Slice off the bytes we need.
-                var message = self.buf.slice(0, self.len);
-                // Remove the bytes for the message from the buffer.
-                self.buf = self.buf.slice(self.len);
-                // Clear the length so we know we need to parse it again.
-                self.len = null;
-                // Parse the message bytes.
-                var obj = JSON.parse(message.toString());
-                // Enqueue it for reading.
-                self.push(obj);
-                // We could have more messages in the buffer so check again.
-                parseBuf();
-            }
-        }
+  // Save this chunk.
+  this.buf = Buffer.concat([this.buf, chunk]);
+
+  const self = this;
+
+  function parseBuf() {
+    // Do we have a length yet?
+    if (typeof self.len !== 'number') {
+      // Nope. Do we have enough bytes for the length?
+      if (self.buf.length >= 4) {
+        // Yep. Parse the bytes.
+        self.len = self.buf.readUInt32LE(0);
+        // Remove the length bytes from the buffer.
+        self.buf = self.buf.slice(4);
+      }
     }
 
-    // Check for a parsable buffer (both length and message).
-    parseBuf();
+    // Do we have a length yet? (We may have just parsed it.)
+    if (typeof self.len === 'number') {
+      // Yep. Do we have enough bytes for the message?
+      if (self.buf.length >= self.len) {
+        // Yep. Slice off the bytes we need.
+        const message = self.buf.slice(0, self.len);
+        // Remove the bytes for the message from the buffer.
+        self.buf = self.buf.slice(self.len);
+        // Clear the length so we know we need to parse it again.
+        self.len = null;
+        // Parse the message bytes.
+        const obj = JSON.parse(message.toString());
+        // Enqueue it for reading.
+        self.push(obj);
+        // We could have more messages in the buffer so check again.
+        parseBuf();
+      }
+    }
+  }
+
+  // Check for a parsable buffer (both length and message).
+  parseBuf();
 
-    // We're done.
-    done();
+  // We're done.
+  done();
 };
 
 function Output() {
-    stream.Transform.call(this);
+  stream.Transform.call(this);
 
-    this._writableState.objectMode = true;
-    this._readableState.objectMode = false;
+  this._writableState.objectMode = true;
+  this._readableState.objectMode = false;
 }
 
 util.inherits(Output, stream.Transform);
 
 Output.prototype._transform = function(chunk, encoding, done) {
-    var len = new Buffer(4);
-    var buf = new Buffer(JSON.stringify(chunk));
+  const len = Buffer.alloc(4);
+  const buf = new Buffer(JSON.stringify(chunk));
 
-    len.writeUInt32LE(buf.length, 0);
+  len.writeUInt32LE(buf.length, 0);
 
-    this.push(len);
-    this.push(buf);
+  this.push(len);
+  this.push(buf);
 
-    done();
+  done();
 };
 
 function Transform(handler) {
-    stream.Transform.call(this);
+  stream.Transform.call(this);
 
-    this._writableState.objectMode = true;
-    this._readableState.objectMode = true;
+  this._writableState.objectMode = true;
+  this._readableState.objectMode = true;
 
-    this.handler = handler;
+  this.handler = handler;
 }
 
 util.inherits(Transform, stream.Transform);
 
 Transform.prototype._transform = function(msg, encoding, done) {
-    this.handler(msg, this.push.bind(this), done);
+  this.handler(msg, this.push.bind(this), done);
 };
 
 function Debug() {
-    stream.Transform.call(this);
+  stream.Transform.call(this);
 
-    this._writableState.objectMode = true;
-    this._readableState.objectMode = false;
+  this._writableState.objectMode = true;
+  this._readableState.objectMode = false;
 }
 
 util.inherits(Debug, stream.Transform);
 
 Debug.prototype._transform = function(chunk, encoding, done) {
-    this.push(JSON.stringify(chunk) + '\n');
+  this.push(JSON.stringify(chunk) + '\n');
 
-    done();
+  done();
 };
 
 exports.Input = Input;