Rated 5 out of 5 stars

by McGWD on Aug. 25, 2013 ·

I made it so it shows the Viewport-Size!
First of all I would like to thank the author for this great little plugin. It really saves time and comes in handy when designing responsive websites.As many others I first wasn't too happy with the plugin only giving back the outer window dimensions. I wanted the viewport-width as well. But I figured out a way to change the javaScript to accomodate for that. First, read this Article how to hack Firefox Extensions:http://perishablepress.com/hacking-firefox-extensions/Then open up the firesizer.js and on line 36 change 'window.outerWidth' to 'document.documentElement.clientWidth-2'.Reinstall the plugin and from now on the width given is the actual viewport width.CheersMcGWD