This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.


The ::-moz-range-thumb CSS pseudo-element represents the thumb, the virtual knob the user can move within the groove, or track, of an <input> of type="range" to alter its numerical value.

Using ::-moz-range-thumb with anything but an <input type="range"> doesn't match anything and has no effect.


<input type="range" min="0" max="100" step="5" value="50"/>
input[type=range]::-moz-range-thumb {

leads to:

The thumb of the <input type=right> styled in green


Not part of any specification. This is a proprietary pseudo-element specific to Gecko.

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support (Yes) Not supported Not supported Not supported Not supported
Feature Firefox Mobile (Gecko) Android IE Phone Opera Mobile Safari Mobile
Basic support (Yes) Not supported Not supported Not supported Not supported

See also

Document Tags and Contributors

 Contributors to this page: cvrebert, teoli
 Last updated by: cvrebert,