Open Screenshot Alternatives for Linux

FireShot is a comprehensive screen capture tool available as a browser extension for Chrome, Firefox, and Internet Explorer, and also as a standalone application. It enables users to capture entire web pages, specific areas, or visible content, providing robust editing and annotation capabilities.

Nimbus Screenshot and Screencast is a comprehensive browser extension and desktop application for capturing and annotating screenshots and recording screencasts. It offers a wide range of capture modes, a built-in editor, and various sharing and integration options, making it a versatile tool for professionals and casual users alike.