User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0 Build ID: 20170918210324 Steps to reproduce: Hello and thanks by advance for looking into this bug! On Windows 10 - Firefox version 56.0 beta (same bug on stable version 55) - In Firefox, right click anywhere and "Inspect element" - On the CSS part, click on any color circle to open the color picker (any CSS property that has a HEX or RGB code) - Click anywhere on the color picker to change the color. - Click again in some place else to change the color another time. Actual results: The first change of color works properly. The second one (and all the further changes) : -is not applied on the selected element on the page. - the HEX or RGB code on the inspector's CSS doesn't change. I have to close the color picker to be able to try another color. Expected results: I used to be able to try as many colors as I wanted by clicking several times on the color picker : - the changes I make should show on the page. - the HEX or RGB code should change in the CSS.

I made a mistake with the steps, I will make a new report.