Kesavan Muthuvel's Must Have

by kesavan

25 Add-ons in this Collection

1-Click YouTube Video Download by The 1-Click YouTube Video Download Team

Rated 4 out of 5 stars 577 reviews

543,424 users

The simplest YouTube Video Downloader for all YouTube Flash sites, period.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,843 reviews

982,427 users

The first and only download manager/accelerator built inside Firefox!

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,599 reviews

1,777,307 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,124 reviews

1,457,821 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...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,212 reviews

916,165 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.
Collector's Note Helps me to ride of Y! Mail Ads: http://userscripts.org:8080/scripts/show/3115 (or) http://userscripts.org/scripts/show/3115

Lightning by Mozilla Calendar Project

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Disconnect by Disconnect

Make the web faster, more private, and more secure.

Web Developer by chrispederick

Rated 5 out of 5 stars 279 reviews

326,757 users

The Web Developer extension adds various web developer tools to the browser.

Nimbus Screen Capture - editable screenshots by Nimbus Web

Rated 4 out of 5 stars 379 reviews

120,550 users

1) Screen capture web pages.
2) Selected regions.
3) Whole browser windows.
4) Slack direct upload (NEW!)
Edit screenshots and save images as local file or Google Drive. Annotate screenshots with different tools. Upload and share!

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 196 reviews

142,776 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.
Collector's Note Make sure your emails are secured

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,464 reviews

130,897 users

AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 177 reviews

92,871 users

View HTTP headers of a page and while browsing.

PrintPDF by Stuart Parmenter

This allows users on Windows and Linux to print web pages to PDF. Mac users you already have this functionality.

YSlow by YSlow

Rated 3 out of 5 stars 210 reviews

41,369 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 129 reviews

78,636 users

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
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