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.
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser. With this you can view how your website displays on various browsers and mobile
This Add-On helps you check your webpage view in Internet Explorer direct from the Firefox browser. This Add-On Embed IE in a Firefox tab.
FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.
With Codetch firefox extenstion, Get the feel of Dreamweaver in a Firefox extension. Edit your documents right next to your web pages as you surf.
URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like “google.con” or “youtube,com”. You have the option of being asked to confirm corrections before they are applied.
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.
With Measurelt, you can Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Opera View Firefox add on Open pages in Opera from Firefox context menus. Very usefull for web developers!
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
The Browser Window Resizer is useful for testing different screen sizes. It accurately resizes your browser so you can test to see what a web page looks like in all of the standard resolution sizes.
Supports the 640×480, 800×600, 1024×768, 1280×800, 1280×1024, 1600×1200 resolutions.
Creates a color palette for Photoshop, Paint Shop Pro, GIMP, Flash, Fireworks, Paint.NET, or OS X based on the current page.
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.
With Server switcher firefox add on you can Easily switch between your development and live servers.
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…