diff --git a/.gitmodules b/.gitmodules
index 8dd9825..775a802 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,9 +1,3 @@
 [submodule "fs/cJSON"]
 	path = fs/cJSON
 	url = https://github.com/DaveGamble/cJSON.git
-[submodule "fs/mmx"]
-	path = fs/mmx
-	url = https://github.com/vurtun/mmx.git
-[submodule "fs/base64"]
-	path = fs/base64
-	url = https://github.com/zhicheng/base64.git
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..f15f5dc
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,23 @@
+EXE_PATH=$(shell pwd)/fs/tabfs
+define NATIVE_MESSAGING_APP_MANIFEST
+{
+  "name": "com.rsnous.TabFS",
+  "description": "TabFS",
+  "path": "$(EXE_PATH)",
+  "type": "stdio",
+  "allowed_extensions": ["tabfs@rsnous.com"]
+}
+endef
+export NATIVE_MESSAGING_APP_MANIFEST
+
+#   "allowed_origins": [
+#    "chrome-extension://knldjmfmopnpolahpmmgbagdohdnhkik/"
+#  ]
+
+# ~/Library/Application Support/Google/Chrome/NativeMessagingHosts
+MANIFEST_LOCATION="$$HOME/Library/Application Support/Mozilla/NativeMessagingHosts"
+APP_NAME="com.rsnous.TabFS"
+install:
+# install native messaging json
+	mkdir -p $(MANIFEST_LOCATION)
+	echo "$$NATIVE_MESSAGING_APP_MANIFEST" > $(MANIFEST_LOCATION)/$(APP_NAME).json
diff --git a/extension/background.js b/extension/background.js
index b204876..a53dae0 100644
--- a/extension/background.js
+++ b/extension/background.js
@@ -289,9 +289,9 @@ async function releasedir(path) {
   if (route.releasedir) return route.releasedir(path);
 }
 
-let ws;
-async function onmessage(event) {
-  const req = JSON.parse(event.data);
+let port;
+/* let ws;*/
+async function onMessage(req) {
   console.log('req', req);
 
   let response = { op: req.op, error: unix.EIO };
@@ -371,14 +371,18 @@ async function onmessage(event) {
 };
 
 function tryConnect() {
-  ws = new WebSocket("ws://localhost:8888");
+  port = chrome.runtime.connectNative('com.rsnous.TabFS');
   updateToolbarIcon();
-  ws.onopen = ws.onclose = updateToolbarIcon;
-  ws.onmessage = onmessage;
+  port.onMessage.addListener(onMessage);
+
+  /* ws = new WebSocket("ws://localhost:8888");
+   * updateToolbarIcon();
+   * ws.onopen = ws.onclose = updateToolbarIcon;
+   * ws.onmessage = onmessage;*/
 }
 
 function updateToolbarIcon() {
-  if (ws && ws.readyState == 1) { // OPEN
+  if (port && port.onMessage) { // OPEN
     chrome.browserAction.setBadgeBackgroundColor({color: 'blue'});
     chrome.browserAction.setBadgeText({text: 'f'});
   } else {
diff --git a/extension/manifest.json b/extension/manifest.json
index ac424f1..7900406 100644
--- a/extension/manifest.json
+++ b/extension/manifest.json
@@ -5,12 +5,18 @@
   "description": "Connects to TabFS filesystem",
   "version": "1.0",
 
-  "permissions": ["tabs", "debugger"],
+  "permissions": ["tabs", "debugger", "nativeMessaging"],
 
   "browser_action": {},
   
   "background": {
     "scripts": ["background.js"],
     "persistent": true
+  },
+
+  "browser_specific_settings": {
+    "gecko": {
+      "id": "tabfs@rsnous.com"
+    }
   }
 }
diff --git a/fs/mmx b/fs/mmx
deleted file mode 160000
index dc54ba5..0000000
--- a/fs/mmx
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit dc54ba5c8cf6518d9876eb8586c83603b683a118
diff --git a/fs/tabfs.c b/fs/tabfs.c
index b992548..2b8bc99 100644
--- a/fs/tabfs.c
+++ b/fs/tabfs.c
@@ -12,7 +12,6 @@
 #include "base64/base64.c"
 
 #include "common.h"
-#include "ws.h"
 
 static cJSON *send_request_then_await_response(cJSON *req) {
     // Will be freed at receiver (ws.c, receive_tabfs_request_then_send_to_browser).