I tried to modify the Image Link Preview to reduce the size of vertically long images as well, but in case of generally large images, like wallpapers, it was stretching out one of the sides. Well, at least when I tried editing the script myself. Could you update your extension to include height as well please?

Does nothing when I hover over a link.

Thank you! Best one I've seen so far. Please add timer or delay for expanded image to close, so it can be captured/saved when needed.

Thank you so much!

Thanks, very useful extension! I have a suggestion for an improvement: While hovering the first time the image will be shown in full size as it will be currently loaded. Afterwards in an predefined size. Could you please combine this behavior? So when you hovering over the URL while pressing e.g. the CTRL button it will be shown in full size, otherwise in a predefined size? Best option for us user would be of course if the behavior and the sizes are customizable. ;-)