Sleazy Fork is available in English.
replaces thumbnails with full image or webm on click, inlines "quoted by" posts on click, can also remove posts, tessellate inlined posts, tessellate entire thread, and expand/collapse all 'quoted by' posts, can color posts recursively downward or entire thread (helps keep track of deeply-embedded conversations), can hide all extra options on posts (to make them smaller/simpler) via toggle in OP, can change media size when expanded, can drag posts around via toggle and reset
