How Do I Remove the Dotted Outline Around Selected Items in Firefox Select Boxes?

Taming the Dotted Outline in Select Boxes on Firefox

While customizing web elements, you may encounter an irksome dotted outline encasing selected items in select boxes, particularly in Firefox. Attempts to eradicate this outline using the CSS outline property often prove futile.

The Solution

As Duopixel aptly suggests, the key lies in targeting the :-moz-focusring pseudo-element that governs the dotted outline in Firefox. By applying the following CSS:

select:-moz-focusring {
    color: transparent;
    text-shadow: 0 0 0 #000;
}

you can render the dotted outline invisible, leaving behind a clean and uncluttered select box.

Optimizing the Fix

To prevent accessibility issues, it's crucial to ensure that the color is transparent and the text shadow is applied to maintain readability. These modifications ensure that the selected option remains visible while the dotted outline is eliminated.

Special considerations

It's important to note that this solution is tailored specifically for Firefox. In other browsers, the dotted outline can be removed using alternative approaches.

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