I love Google’s Chrome. My pages run multiple times faster. But, at least for the time being, you won’t see me jumping over the Firefox ship just yet. The massive number of Firefox extensions make developing your themes much, much easier. In this article, I’ll list six extensions that are crucial to developing your web applications quickly.
Screengrab
Ready to submit your template to ThemeForest? Screengrab is an easy to use extension that allows you to instantly save a png of your entire webpage to your desktop. While you might currently be prepping your snapshots in Photoshop, Screengrab will reduce your prep time dramatically.
Install
Web Developer Toolbar
Are there any web developers who don’t have this extension installed? Along with Firebug, this is easily the most beneficial plugin in your arsenal. You can validate your html and css with just a keystoke. You can resize your window to view your site at different resolutions. You can edit CSS on the fly (which I use more than any other feature). Do not load Firefox without it. 
Install
Firebug
Equally as powerful as the Web Developer Toolbar, Firebug allows you to inspect every aspect of your document: HTML, CSS, Javascript. See how long it’s taking to load all of your Javascript files. Use the console to debug your documents. View which of your CSS styles are being overridden.
Install
Colorzilla
You know the drill. You’re working on your website, but you can’t remember the hex value for the red that you’re using. Many people would quickly press “Print Screen”, copy it into Photoshop, and use the eye dropper to grab it.
Or – you can use Colorzilla. This extension works exactly like the eye dropper in Photoshop. You’ll be amazed at how much time this saves you.
Install
FireFTP
FireFTP is an extension that will allow you to quickly transfer your files to your server. It’s simple, easy to use, and works perfectly. I use this tool five to ten times a day.
Install
IE Tab
Like everyone else, I hate compensating for IE. Even more, I hate spending the extra ten seconds to load Internet Explorer so that I can view my site. Enter IE tab. This plugin will allow you to create a new tab in Firefox that renders the page exactly like IE. Now, you can switch between modes in a second or so. Very, very convenient.
Install
Any tools that I missed?
