Here’s probably why it’s really easy for web designers get the job done a lot easier when designing for Firefox. For starters, most of the time what you put into the stylesheet, you get (though I still have to experience not getting it). No more guess games like with the headache Internet Explorer brings. Another thing is that there’s a ton of add-ons available for Firefox to help.

If you’re a web designer, probably one of your concerns in terms of layout is distances. Will your heights and widths in the CSS display exactly the same in the browser? Well here’s MeasureIt for you. It’s an add-on that lets you pop out a ruler tool that can measure any element displayed on the page. You’d now know if that header exactly measure 160px. Or if your margins are set exactly at 10px on both sides.

Download MeasureIt here.