Sleazy Fork is available in English.
Turn a page of thumbnails into high-res images
< Opinie na Eza's Gallery Swallower
Which sites? I try to set trigger_size sensibly for each domain, but I have weird monitors and good ad-blockers. Being in the way is a bug.
It's very good, my only gripe is not being able to move the "swallow gallery button" because on some sites, it blocks stuff like the search bar