User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9b3pre) Gecko/2007121403 SeaMonkey/1.2a1pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9b3pre) Gecko/2007121403 SeaMonkey/1.2a1pre Autoresize could have three steps: normal, zoom horizontally/vertically, zoom-to-fit. Currently, zoom-to-fit fits the whole image to the viewport. The problem with this is that it leaves a whole lot of blank space for images whose aspect ratio is not 4:3. This new zoom level would fit the image either horizontally or vertically, allowing a total of one scroll bar. This would be especially useful with portrait images where image_x_width > viewport_x_width, or wide panoramas (image y > viewport y). Reproducible: Always