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Extensions 
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Notification Center: Messenger Groups Events
Notification Center provides an overview of alerts for Facebook (TM): Notifications, Messenger, Groups and Events
Gradient Merge for Google Calendar™ Events
Take your duplicate Google Calendar events and merge them into one event.
Astronomy Calendar for celestial events
Replaces the New Tab background with an interactive calendar with background space images taken by Maroun Habib / Moophz.
![Google Events [ANTP] Chrome extension download](https://lh3.googleusercontent.com/3AHbU8v0uyj2tnb2Ti96V5t4SzadNd_cD96HcbUVGvOPOYmSS7dkc6gWebH9DdLvfd_jNptxROQvzqMu6LFs5d3bO5c)
Luminous: JavaScript events blocker
An experimental extension to identify, analyze and block code execution and event collection through JavaScript in your browser.
Invity PRO for Facebook Invites Events&Pages
The Ultimate tool for inviting friends to Events & Pages
