Text Revealer од semanticdata

Introduction
This Firefox Extension adds a new popover that appears when seecting text. It shows additional information about the text you selected. Things like Wikipedia entries, dictionary definitions, and more.

How to Use
Toggle the extension by using the new floating bottom at the bottom left of the page. Once activated, it will generate a popover view after a delay that can be configured in the extension options accessed by goint to Add-ons → Text Revealer → Options.

Acknowledgments
This is the Firefox port of Text Revealer by Jami Gibbs.