Hey guys, we recently discovered that the latest Firefox version (19) has a bug that is not painting images correctly when the content is created dynamically (in our case e.g., a JSON is retched by AJAX, which is then used in a underscore Javascript template). The templates contain a inline-style like: <td style="background-image: url(http://a.cdn.net/path/to/image.png)">...</td> When I make a full refresh, everything is loaded instantly and looks fine. However, if the content area is cleared and new content is created (in exactly the same way as on a clean refresh, except that the page is not reloaded - so AJAX > JSON > _.underscore), then the pictures are not immediately visible. Sometimes it takes up to 10-12 seconds for them to display. This ONLY occurs in Firefox 19 and 20b1 Live Example: https://www.racebets.com/en/horse-betting-online/race/details/id/808582/ Clean refresh, all good. But change the races once loaded, and the silks are not painted. If you resize the window, change some CSS style or scroll up and down, the silks are painted immediately - so I suspect it is a draw/paint issue. Any ideas how to prevent this and when it will be fixed?