diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ad8293a5..e77ffb3a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,23 +1,30 @@
 # Contributing Guidelines
-Thank you for your contributing! My requirements are few things. Please read them.
+Thank you for your contributing! My requests are few things. Please read below.
 
 ## Issue
-Thank you for feedback. When you report a problem, please pay attention to fowllowing points.
+Thank you for feedback. When you report a problem, please pay attention to following points.
 
 ### Does it happen on web browsers? (especially Chrome)
-electron-mattermost is based on Electron. It integrates Chrome as a browser window. If the problem appears on web browsers, it may be the issue for Mattermost (or Chrome).
+electron-mattermost is based on Electron. It integrates Chrome as a browser window.
+If the problem appears on web browsers, it may be the issue for Mattermost (or Chrome).
+
+### Try "Clear Cache and Reload"
+It's available as `Ctrl(Command) + Shift + R`.
+Some layout problems are caused by browser cache.
+Especially, this kind of issue might happen when you have updated Mattermost server.
 
 ### Write detailed information
-Following points are important to understand the problem.
+Following points are very helpful to understand the problem.
 
+* How to reproduce, step-by-step
+* Expected behavior (or what is wrong)
+* Screenshots (for GUI issues)
 * electron-mattermost version
 * OS
 * Mattermost version
-* Expected behavior (or what is wrong)
-* How to reproduce, step-by-step
 
 ## Pull request
-PR is welcome.
+PR is welcome. Thank you for your great works!
 
 When you edit the code, please run `npm run prettify` before your `git commit`.
 Codes will be formatted.
diff --git a/README.md b/README.md
index e40dbc20..5aa8c8de 100644
--- a/README.md
+++ b/README.md
@@ -7,18 +7,17 @@
 
 ### Desktop integration
 * Tabs for multiple teams
-* Notifications
-  * Desktop Notification
-    * Windows 10: Toast
-    * Windows 7-8.1: Balloon
-    * OS X: Notification Center
-    * Linux: libnotify ([Electron's notification spec](http://electron.atom.io/docs/v0.36.0/tutorial/desktop-environment-integration/#linux))
-  * Badges for unread channels
+* Desktop Notification
+  * Windows 10: Toast
+  * Windows 7-8.1: Balloon (fallback behavior, so lesser support)
+  * OS X: Notification Center
+  * Linux: libnotify ([Electron's notification spec](http://electron.atom.io/docs/v0.36.0/tutorial/desktop-environment-integration/#linux))
+* Badges for unread channels and mention
 * Resident application
 
 ### Pre-packaged
 You don't have to install any other software.
-
+Packages are available at [release page](http://github.com/yuya-oc/electron-mattermost/releases).
 
 ## Usage
 
diff --git a/package.json b/package.json
index e0d14742..0a7c40c4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "electron-mattermost",
-  "version": "1.0.5",
+  "version": "1.0.7",
   "description": "Electron-based desktop application for Mattermost",
   "main": "main.js",
   "author": "Yuya Ochiai",
diff --git a/src/browser/webview/mattermost.js b/src/browser/webview/mattermost.js
index 6e6f8bf5..859472da 100644
--- a/src/browser/webview/mattermost.js
+++ b/src/browser/webview/mattermost.js
@@ -115,6 +115,7 @@ function overrideNotificationWithBalloon() {
       options: options
     });
   };
+  Notification.permission = NativeNotification.permission;
   Notification.requestPermission = function(callback) {
     callback('granted');
   };
@@ -126,6 +127,7 @@ function overrideNotification() {
   Notification = function(title, options) {
     this.notification = new NativeNotification(title, options);
   };
+  Notification.permission = NativeNotification.permission;
   Notification.requestPermission = function(callback) {
     callback('granted');
   };
diff --git a/src/main.js b/src/main.js
index c071f3fe..8dd38c02 100644
--- a/src/main.js
+++ b/src/main.js
@@ -121,10 +121,15 @@ app.on('ready', function() {
     window_options = {};
   }
   window_options.icon = path.resolve(__dirname, 'resources/appicon.png');
+  window_options.fullScreenable = true;
   mainWindow = new BrowserWindow(window_options);
+  mainWindow.setFullScreenable(true); // fullscreenable option has no effect.
   if (window_options.maximized) {
     mainWindow.maximize();
   }
+  if (window_options.fullscreen) {
+    mainWindow.setFullScreen(true);
+  }
 
   // and load the index.html of the app.
   mainWindow.loadURL('file://' + __dirname + '/browser/index.html');
diff --git a/src/main/menus/app.js b/src/main/menus/app.js
index 68fdb8a4..e56dec54 100644
--- a/src/main/menus/app.js
+++ b/src/main/menus/app.js
@@ -7,6 +7,24 @@ var createTemplate = function(mainWindow) {
   var app_name = electron.app.getName();
   var first_menu_name = (process.platform === 'darwin') ? app_name : 'File';
   var template = [];
+
+  const platformAppMenu = process.platform === 'darwin' ? [{
+    type: 'separator'
+  }, {
+    label: 'Hide ' + app_name,
+    accelerator: 'Command+H',
+    selector: 'hide:'
+  }, {
+    label: 'Hide Others',
+    accelerator: 'Command+Shift+H',
+    selector: 'hideOtherApplications:'
+  }, {
+    label: 'Show All',
+    selector: 'unhideAllApplications:'
+  }, {
+    type: 'separator'
+  }] : [];
+
   template.push({
     label: first_menu_name,
     submenu: [{
@@ -17,7 +35,7 @@ var createTemplate = function(mainWindow) {
       click: function(item, focusedWindow) {
         mainWindow.loadURL('file://' + __dirname + '/browser/settings.html');
       }
-    }, {
+    }, ...platformAppMenu, {
       label: 'Quit',
       accelerator: 'CmdOrCtrl+Q',
       click: function(item, focusedWindow) {
diff --git a/src/package.json b/src/package.json
index 806c7c98..9ecbd50b 100644
--- a/src/package.json
+++ b/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "electron-mattermost",
-  "version": "1.0.5",
+  "version": "1.0.7",
   "description": "Electron-based desktop application for Mattermost",
   "main": "main.js",
   "author": "Yuya Ochiai",