Yande.re/Konachan Masonry(Waterfall) Layout. Also support danbooru/gelbooru/rule34/sakugabooru/lolibooru/safebooru/3dbooru/xbooru/atfbooru/aibooru et cetera.
< Feedback on Yande.re Masonry
If you are using Firefox, this issue may have been fixed in v0.35.4.
Unfortunately is broken on rule34.xxx.