Top 11 Must Have Mozilla Firefox Plugins for Web Developers

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In this article, we are going to discuss about name and features of some must have Mozilla Firefox Plugins. If you are a web developer, then you should take benefits for these Mozilla Firefox Plugins mentioned in this article. These web developer plugins can save lots of your time and they also make your work easier.

Top 10 Must Have Mozilla Firefox Plugins for Web Developers

1. Firebug

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.

2. Web Developer Toolbar

The Web Developer extension adds various web developer tools to a browser. The extension is available for Chrome and Firefox, and will run on any platform that these browsers support including Windows, OS X and Linux.

3. ColorZilla

ColorZilla for Firefox is an add-on that assists web developers and graphic designers with color related tasks – both basic and advanced.

With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and paste it into another program. You can analyze the page and inspect a palette of its colors. The built-in palette browser allows choosing colors from pre-defined color sets and saving the most used colors in custom palettes. DOM spying features allow getting various information about DOM elements quickly and easily. You can create advanced multi-stop CSS gradients. And there’s much more…

ColorZilla is also available as a Chrome extension.

4. MeasureIt

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

5. User Agent Switcher

A browser extension that adds a menu and a toolbar button to switch the user agent of a browser.

6. Adblock Plus

Adblock Plus is an open-source project addressing the problem of annoying and intrusive online advertising by putting users in control. The extension allows defining filters that determine what a website is permitted to load, as well as provide a way to collapse unwanted sections of a web page (element hiding). People who don’t have the knowledge or the time to create their own filters can choose from over fifty existing subscriptions that have been prepared by members of the Adblock Plus community and are constantly being updated.

7. Autofill Forms

Autofill Forms enables you to fill out web forms with one click or a keyboard shortcut.

8. IE Tab

IE Tab is a browser extension that allows you to use Internet Explorer to display web pages in a tab. This is useful in many cases where a web page requires Internet Explorer features.

9. FireFTP

FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.


This add-on adds a small screenshot capture button to the top right of your browser. There are several options for capture, including uploading the visible area of the browser only or uploading the entire web page. Screenshots are uploaded to the free screenshot hosting website

11. Session Manager [new]

Session Manager saves and restores the state of all or some windows – either when you want it or automatically at start-up and after crashes. It can also automatically save the state of open windows individually.

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