Google Chrome
1. Click the icon left to the adress in navigation bar
2. Select "Notifications"
3. Choose "Always allow on this site"
Mozilla Firefox
1. Click the icon left to the adress in navigation bar
2. Click "More information"
3. Navigate to "Permissions" tab
4. in "Show notifications" option select "Allow"
Safari
1. Go to the browser "Preferences"
2. Select the tab "Notifications"
3. Select "Allow" next to the site you use to access WebClient
NOTE: Check this link to see if your browser supports HTML5 notifications: http://caniuse.com/notifications