Putting images with options in a dropdown list

This code will work only in Firefox:

<select>
    <option value="volvo" style="background-image:url(images/volvo.png);">Volvo</option>
    <option value="saab"  style="background-image:url(images/saab.png);">Saab</option>
    <option value="honda" style="background-image:url(images/honda.png);">Honda</option>
    <option value="audi"  style="background-image:url(images/audi.png);">Audi</option>
</select>

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Edit (April 2018):

Firefox does not support this anymore.

You can't do that in plain HTML, but you can do it with jQuery:

JavaScript Image Dropdown

Are you tired with your old fashion dropdown? Try this new one. Image combo box. You can add an icon with each option. It works with your existing "select" element or you can create by JSON object.