My Favorite Add-ons

by Vikram

14 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,251 reviews

579,921 users

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...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 278 reviews

207,780 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Full Web Page Screenshots (♥♥♥♥♥) by susbox

FireShot makes full web page screenshots. Demo: http://bit.ly/RlBQMV

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Tamper Data by Adam Judson

Rated 4 out of 5 stars 180 reviews

63,469 users

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 387 reviews

169,086 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 343 reviews

90,982 users

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

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 50 reviews

76,732 users

As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.

Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aimed to provide a powerful JavaScript debugging environment for Mozilla based browsers.

Modify Headers by Gareth Hunt

Rated 4 out of 5 stars 77 reviews

87,167 users

Add, modify and filter the HTTP request headers sent to web servers. This addon is particularly useful for Mobile web development, HTTP testing and privacy.

ERail Plugin for Firefox by eRail

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Experimental

Rated 3 out of 5 stars 15 reviews

22,315 users

This plugin provides faster user experience for Indian Railways trains search on eRail,in

Go-Mobile [Speed Boost] by Geek in Training

Rated 5 out of 5 stars 25 reviews

2,976 users

Tell websites your browser is a phone. Very handy for dial-up connections, or just to speed up browsing. Simple, small, and fast. Go Mobile.

Page Ruler by Aurélien MANCA

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Experimental

Rated 2 out of 5 stars 13 reviews

1,856 users

A lightweight ruler to measure web page elements.

L-Square Responsive Design Inspector by Jason M.

Rated 3 out of 5 stars 5 reviews

1,384 users

Browser pixel rulers to help inspect window widths of adaptive designs. The add-on button acts as a toggle that adds rulers similar to a graphics app to measure the current window resolution.

sudoku by Petr Blahoš

Rated 4 out of 5 stars 5 reviews

299 users

This extension lets you generate random SUDOKUs and play them. It also detects SUDOKU and let you play puzzles from various web-pages in a single user interface.

160by2 by 160by2

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Experimental

Rated 5 out of 5 stars 1 review

138 users

160by2.com browser extension to send FREE messages to anyone across India, right from your browser.

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