Sleazy Fork is available in English.
Shows just fullsize Image with hotkeys & without pop-ups on many image-hosting sites
< Commentaires sur Handy Image
There is already a script which does exactly that, try searching around here on greasyfork
Could you link it? The reason I asked if you could add it to this is cause of all the image host sites yours works on it'd be really nice to just be able to hover instead of open new tabs.
Hover Over Thumbnail/Save Image
Would it be possible to show full size image from the thumbnail like from a forum post with several thumbnails? Maybe also able to save full size image from said thumbnail?