'There's a per-site image exception list. It's in Page Info.'
True, but correct me here: Its not as easy to use as Chrome's 'Exclusions List'. You have to load the page first before being able to disable images. Its not possible to lock down the browser in advance and after only re-enable what you actually want. Plus, the JS 'Exclusion List' is obviously a greater priority here, as images on many websites don't even load without JS!