almost everything works as expected, but 3 things force me to subtract 1 star:
1) most important and most annoying: when holding right click and scrolling the zoom works but also the entire page scrolls, I remeber this working differently in the past (ie. page content stood still - not scrolling - when zooming the image)
2) minor but stil quite annoying: rotate left/right options from context menu should be located in the root menu, not inside a submenu; I'm using this quite often and it's very annoying to click so many times just to rotate the image
and no, you can't just do it with the scroll wheel, because the entire page freaking scrolls - as described above
3) minor but just feels backwards: currently context submenu for rotate has options "rotate right" and "rotate left" in the wrong order - it's much more intuitive for "rotate left" (counter-clockwise) to be first and "rotate right" (clockwise) - second

other than that, the plugin is mighty useful, especially on 4k screens to zoom in on thumbnails on many pages.

thank you.