Imagus is an extensive extension that is used to show videos or images and enlarge thumbnails from links with a mouse hover. This tool offers plenty of settings which can be customized and simply useful features such as viewer, hover zoom, gallery, grants, sieve, and tools. You can disable the resizing mode totally or set the first sizing mode. There are opening images, shortcuts, and send image tools and you can also replace the default of browser image resizer to a more customizable version. The user can find the larger images and the sieve rules are based on JavaScript, regular expressions, and a bit of HTML. It is possible to tell on which sites the extension work at grants can and block just some sieve rules. Moreover, the gallery choice enables you to store only the image address with a thumbnail and work like a bookmark for images. Imagus is a reliable piece of program that is intended to complement image features from Opera by default.