Take a Break
Reminds you to take a break at a customizable time frame.
Extension for increasing security and privacy level of the user.
GMX Mail Checker
Check gmx.com for unread emails and get badge area counter without the need to enter your credentials (password)
BzKwebTV Live Notifier
Convert any video file to selected formats (i.e. mp4) inside your browser!
Craigslist Helper for Inoreader
Read your personal Craigslist RSS feeds with this extension inside Inoreader
Open Two-Factor Authenticator
An open-source two-factor Time-based One-Time Password (TOTP) authenticator
Модуль подписи документов
Font Fingerprint Defender
Defending against Font fingerprinting by reporting a fake value.
This extension will notify you about discounts and deals
This extension tells you when a course is available at free cost across all MOOCs
WebRTC Screen Capturing Demo
This opera extension enables screen capturing.