Best Firefox Add-Ons for Web Developers
ColorZilla is a nice add-on for Firefox which helps web developers in all the issues related to colors. With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and paste it into another program.
FireShot capture webpage screenshots easily. this firefox tool also do many things like screenshot annotation, save as image or pdf and more.
Yahoo Yslow is website speed testing tool. With yslow firefox extension, you can easliy analyse your website speed performance.
Firefox Add Ons Ad Blocker blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable). You can read more about Adblock Here
Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.
Seoquake is a Firefox SEO extension aimed primarily at helping web masters who deal with search engine optimization (SEO), social media optimization (SMO) and internet promotion. Seoquake allows to investigate many important SEO parameters.
Disconnect extension Make the web faster, more private, and more secure. This extension lets you visualize and block the otherwise invisible websites that track your search and browsing history.
Displays a country flag depicting the location of the current website’s server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more…