Here I have compiled Top 5 Mozilla Firefox and Chrome Add-ons for Developers which are highly useful for any developer in the phase of development and many more things. If these add-ons installed on your browser it can make your task really quick and easy.This post covers 5 of the best Mozilla Firefox and Chrome Add-ons for web developers to utilize in their everyday tasks.
top-addon-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.
Features:
* Inspect HTML and modify style and layout in real-time
* Use the most advanced JavaScript debugger available for any browser
* Accurately analyze network usage and performance
* Extend Firebug and add features to make Firebug even more powerful
* Get the information you need to get it done with Firebug.


2. YSlow

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow is available for Firefox as an add-on integrated with the Firebug web development tool. YSlow grades web page based on one of three predefined ruleset or a user-defined ruleset. It offers suggestions for improving the page’s performance, summarizes the page’s components, displays statistics about the page.
Features:
* Grades web page based on one of three predefined ruleset or a user-defined ruleset;
* It offers suggestions for improving the page’s performance;
* Summarizes the page’s components;
* Displays statistics about the page;
* Provides tools for performance analysis, including Smush.it™ and JSLint.


3. Nimbus Screen Capture – editable screenshots

Nimbus Screenshot supports horizontal scrolling. The editor interface allows editing objects even after you add them to the screenshot (and this feature is totally unique)!
Good alternative to TechSmith Snagit extension or Awesome Screenshot.
Features:
* Capture the whole web page or a required section of it;
* Capture the whole browser window (!);
* Create your own drawing or model from scratch (!);
* Paste different patterns and text boxes to your screenshot;
* Resize and crop your screenshot;
* Add arrows and stickers to your screenshot (!);
* Save screenshots in any of the following formats: JPG, PNG, BMP;
* Save screenshots to Google Drive.

4. SQL Inject Me

SQL Inject Me is the Exploit-Me tool used to test for SQL Injection vulnerabilities.
The tool works by submitting your HTML forms and substituting the form value with strings that are representative of an SQL Injection attack.
The tool works by sending database escape strings through the form fields. It then looks for database error messages that are output into the rendered HTML of the page.
The tool does not attempting to compromise the security of the given system. It looks for possible entry points for an attack against the system. There is no port scanning, packet sniffing, password hacking or firewall attacks done by the tool.
You can think of the work done by the tool as the same as the QA testers for the site manually entering all of these strings into the form fields.

5. RESTClient, a debugger for RESTful web services

RESTClient supports all HTTP methods RFC2616 (HTTP/1.1) and RFC2518 (WebDAV). You can construct custom HTTP request (custom method with resources URI and HTTP request Body) to directly test requests against a server.