X-Notifier for Chrome and Firefox will actively check your email accounts, notifying you of unread emails and more.

Designed primarily for email accounts, X-Notifier is also capable of providing notifications for popular social media sites like Facebook, Twitter, LinkedIn, etc. This process is achieved by installing scripts that can be obtained from the author's site. You can use multiple accounts for the same host. Please note that X-notifier 4.0 does not support Firefox's user scripts because of the internal changes in Firefox.

The X-Notifier extension/add-on gives you an efficient means to have an at-a-glance view of unread emails and social media accounts without the need to navigate from your browser.

X-Notifier Features:

mail notification (Gmail, Hotmail, Yahoo, AOL, Daum, Naver, Nate, RSS)
support user script for other webmails
support multiple Google Accounts
account switching
auto-login

Similar:
Disable Gmail Showing Social, Media Sharing, and Dating Notifications
How to Show or Hide Your Email Address on the Sign-In Screen

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