I absolutely hate the FF UI. I WANT to use FF, I actually switched a few months ago and did it for a couple of months. I THINK my problem (I say think because I feel like someone will measure the pixel and say I&#x27;m wrong) is that it feels like there is a ton of wasted space between the tabs, above the tabs. etc. I can&#x27;t control the size of the top bars and they&#x27;re huge compared to chrome. I&#x27;m a fan of tiny icons and very, very compact UIs so that I can get more on the screen at once. Here&#x27;s my comparison on a 28&quot; monitor <a href="https:&#x2F;&#x2F;www.dropbox.com&#x2F;s&#x2F;k32gln7s3ev5a7t&#x2F;Screenshot%202016-01-27%2010.51.41.png?dl=0" rel="nofollow">https:&#x2F;&#x2F;www.dropbox.com&#x2F;s&#x2F;k32gln7s3ev5a7t&#x2F;Screenshot%202016-...</a>