Shows larger version of thumbnails on reddit.com.
|move mouse cursor over thumbnail
|move cursor off thumbnail, click, zoom out fully, ...
|right-click or tap shift while popup is visible
|mouse wheel up/down to zoom in/out
|open image in new tab
|press "t" while popup is visible
|flip through imgur/minus album
|mouse wheel, j/k or left/right keys
|deactivate until page reload
|press escape while popup is visible
|hold down shift while entering/leaving thumbnail
|monkey toolbar icon -> "User Script Commands" -> "Set up..."