<option value="one">ONE</option>
 <option value="two" style="background-color: #00FF00;">TWO</option>
 <option value="three" style="color: #FF0000;">THREE</option>
 <option value="four" style="color: #FF0000; background-color: #00FF00;">FOUR</option>

Hi. We have a web application which has a number of <select> elements whose <option> child elements have CSS 'style' attributes to change the background color of some of the options, to make them stand out, like this simple test: <select name="select"> <option value="one">ONE</option> <option value="two" style="background-color: #00FF00;">TWO</option> <option value="three" style="color: #FF0000;">THREE</option> <option value="four" style="color: #FF0000; background-color: #00FF00;">FOUR</option> </select> This works with older version of Firefox but our users have discovered that the latest version, 49.0.1, ignores the styles for the <option> elements; in the example above all of the lines in the dropdown list for the <select> element have the same default background and color. Older versions of Firefox show the different colors. Also Firefox 49.0.1 on Windows XP (must be the 32-bit version of Firefox) still does. But Firefox 49.0.1 for Windows Vista and Windows 7 does not show the colors. Other browsers - Internet Explorer on XP, Google Chrome - also show the style colors. We standardize on Firefox - we tell our users to use Firefox with our application. If there are no plans to return the styling then we will have to try and replace our <select> elements with customized javascript controls, which will be messy. Or move to another brower, which will take a lot of time in testing. Is there any way/setting to return the old behavior and have Firefox again take note of the 'style' attribute for <option> elements in a <select>? Or might there be plans to fix this in a future release? Thanks!