It became SPAM now. The web.de icon doesn't disappear. It opens web.de search engine without my agreement.
The WEB
DE MailCheck is a browser extension for accessing and managing email accounts
It provides email notification, access to multiple email accounts, quick email composition, email deletion, and customizable notification sound
The plugin ensures encrypted SSL connection and password protection for security
It is designed for accessing personal mail and is associated with the popular German internet portal WEB
DE