diff --git a/main.js b/main.js
index 9487327..2c6dc3e 100644
--- a/main.js
+++ b/main.js
@@ -162,7 +162,9 @@ function createJitsiMeetWindow() {
     setApplicationMenu();
 
     // Check for Updates.
-    autoUpdater.checkForUpdatesAndNotify();
+    if (!process.mas) {
+        autoUpdater.checkForUpdatesAndNotify();
+    }
 
     // Load the previous window state with fallback to defaults.
     const windowState = windowStateKeeper({
@@ -290,8 +292,9 @@ function handleProtocolCall(fullProtocolCall) {
 
 /**
  * Force Single Instance Application.
+ * Handle this on darwin via LSMultipleInstancesProhibited in Info.plist as below does not work on MAS
  */
-const gotInstanceLock = app.requestSingleInstanceLock();
+const gotInstanceLock = process.platform === 'darwin' ? true : app.requestSingleInstanceLock();
 
 if (!gotInstanceLock) {
     app.quit();
@@ -345,10 +348,7 @@ app.on('second-instance', (event, commandLine) => {
 });
 
 app.on('window-all-closed', () => {
-    // Don't quit the application on macOS.
-    if (process.platform !== 'darwin') {
-        app.quit();
-    }
+    app.quit();
 });
 
 // remove so we can register each time as we run the app.
diff --git a/package.json b/package.json
index c56f92e..c896c82 100644
--- a/package.json
+++ b/package.json
@@ -39,11 +39,18 @@
       "hardenedRuntime": true,
       "entitlements": "entitlements.mac.plist",
       "entitlementsInherit": "entitlements.mac.plist",
+      "asarUnpack": "**/*.node",
       "extendInfo": {
         "NSCameraUsageDescription": "Jitsi Meet requires access to your camera in order to make video-calls.",
-        "NSMicrophoneUsageDescription": "Jitsi Meet requires access to your microphone in order to make calls (audio/video)."
+        "NSMicrophoneUsageDescription": "Jitsi Meet requires access to your microphone in order to make calls (audio/video).",
+        "LSMultipleInstancesProhibited": true
       }
     },
+    "mas": {
+      "entitlements": "resources/entitlements.mas.plist",
+      "entitlementsInherit": "resources/entitlements.mas.inherit.plist",
+      "hardenedRuntime": false
+    },
     "linux": {
       "artifactName": "jitsi-meet-${arch}.${ext}",
       "category": "VideoConference;AudioVideo;Audio;Video;Network",
diff --git a/resources/entitlements.mas.inherit.plist b/resources/entitlements.mas.inherit.plist
new file mode 100644
index 0000000..656b548
--- /dev/null
+++ b/resources/entitlements.mas.inherit.plist
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.inherit</key>
+    <true/>
+</dict>
+</plist>
diff --git a/resources/entitlements.mas.plist b/resources/entitlements.mas.plist
new file mode 100644
index 0000000..2cb754e
--- /dev/null
+++ b/resources/entitlements.mas.plist
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.app-sandbox</key>
+    <true/>
+    <key>com.apple.security.network.client</key>
+    <true/>
+    <key>com.apple.security.device.camera</key>
+    <true/>
+    <key>com.apple.security.device.audio-input</key>
+    <true/>
+    <key>com.apple.security.device.microphone</key>
+    <true/>
+</dict>
+</plist>