Hover Zoom+ - Google Chrome extension for zooming images on mouse hover - extesy/hoverzoom
Imagus - The extension is intended to complement image features that (I think) is missing from Opera by...
Image Max URL - Help find larger or original versions of images, including a customizable image popup feature
Hover Zoom - Enlarge thumbnails on mouse over.
Thumbnail Zoom Plus - The official site of the Thumbnail Zoom Plus add-on for Firefox
RedReader - RedReader - An unofficial open source Reddit client for Android.