The "ePub Viewer" extension adds a context menu item to the browser link context to open and render *.epub and *.opf files in a browser tab for easy access without the need to install native software. This extension uses the "Reader View" interface, which offers three color schemes (light, dark, and sepia). The user can change font size and family from the left side panel. It is also possible to view the eBook in full-screen mode. Table of Content is also displayed to let the user jump to a chapter. Notes: 1. This extension stores the current page number and the book URL in the address bar, so if this address is opened in a new tab, the book at the current position will be opened. This is useful to continue reading a book later. Change Log: 0.1.3: Load from local *.epub and *.opf files Display loading percentage. 0.2.0 Moves to manifest v3