setContext-user-extension.js

window.contextTimeout = null;
var ctx;
var opac;
var fadeIn;
Selenium.prototype.doSetContext = function(context) {
	function fade()
	{
		if (fadeIn > 0) {
			opac = opac + 10;
		}
		else {
			opac = opac - 10;
		}		
		var moz_opac = opac / 100;
		if (ctx) {
			ctx.style.filter = "alpha(opacity=" + opac + ")";
			ctx.style.opacity = moz_opac;
			if (opac < 81 && opac > 1){
				setTimeout(fade, 50);
			}
			else if (fadeIn > 0) {
				fadeIn = 0;
				setTimeout(fade, 2500);
			}
		}
	}
	
	var txt = new String(context);
	if ( txt.indexOf("bubble") == -1 ) {
		return;
	}
	else {
		context = txt.substr(7);
	}
	opac = 1;
	fadeIn = 1; //Are we fading in or fading out?
	ctx = this.browserbot.getUserWindow().document.getElementById("selenium-context");
	if (ctx) {
		//this.browserbot.getUserWindow().document.body.removeChild(ctx);
		clearTimeout(window.contextTimeout);
	} else {
		ctx = this.browserbot.getUserWindow().document.createElement("div");
	}
	ctx.setAttribute('id', "selenium-context");
	ctx.style.zIndex = "500";
	ctx.style.position = "fixed";
	ctx.style.left = "50%";
	ctx.style.top = "10px";
	ctx.style.width = "500px";
	ctx.style.maxHeight = "100px";
	ctx.style.overflow = "hidden";
	ctx.style.margin = "0 0 0 -250px";
	ctx.style.padding = "5px";
	ctx.style.MozBorderRadius = "8px";
	ctx.style.borderRadius = "8px";
	ctx.style.textAlign = "center";
	ctx.style.font = "normal normal 20px/25px Arial,sans-serif";
	ctx.style.background = "#000";
	ctx.style.border = "1px solid #CCC";
	ctx.style.color = "#EEE";
	ctx.style.opacity = opac / 100;
	ctx.style.filter = "alpha(opacity=" + opac + ")";

	ctx.innerHTML = context;
	this.browserbot.getUserWindow().document.body.appendChild(ctx);
	setTimeout(fade, 50);  
}

Forking so I can try to fix the IE issues.

Hmm, still has trouble with IE through saucelabs, although it works on my browser. Hmm.