Press the button...

press-the-button.js

// First go to www.reddit.com/r/thebutton and unlock the button by clicking on it once

var theButton = document.getElementById("thebutton");
var theButtonTimer10s = document.getElementById("thebutton-s-10s");
var theButtonTimer1s = document.getElementById("thebutton-s-1s");

var ColourToTime = {
    blue: "5",
    green: "4",
    yellow: "3",
    orange: "2",
    red: "1"
};

// Choose your desired colour here
myColour = "yellow";

setInterval(function() {
    if (theButtonTimer10s.innerHTML == ColourToTime[myColour] && theButtonTimer1s.innerHTML == "0") {
        // Press the button when you get to your desired colour...
        theButton.click();
    }
}, 100);