We recently ran a week long A/B optimization test at www.mozilla.com where we rotated in a few different colors of the Firefox download button. (You may recall that we’ve previously conducted one prior multivariate test on the Firefox product/download page… check it out for some historical context.) For this current test, here was our existing page and download button: Within this page (the gree
![Firefox is Green](https://cdn-ak-scissors.b.st-hatena.com/image/square/952ea448a5e50f5c9f5d373fc5deb15523d17ce2/height=288;version=1;width=512/https%3A%2F%2Fblog.mozilla.org%2Fmetrics%2Ffiles%2F2009%2F06%2Ffx_control-300x241.png)