JerryQi

by SpaceTimer

40 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,072 reviews

18,077,129 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,120 reviews

1,801,421 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...

LastPass Password Manager by LastPass

Rated 4 out of 5 stars 1,539 reviews

745,447 users

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,852 reviews

1,167,760 users

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

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,038 reviews

1,131,625 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

iMacros for Firefox by Ipswitch, Inc.

Rated 4 out of 5 stars 456 reviews

914,062 users

Automate Firefox. Record and replay repetitive tasks. If you're tired of manually visiting the same sites, filling out forms, downloading files and extracting data, then iMacros is for you! Save time, effort and money with iMacros browser automation!

Web Developer by chrispederick

Rated 5 out of 5 stars 263 reviews

413,214 users

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

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,646 reviews

730,551 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 50 reviews

104,429 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.

Flagfox by Dave G

Rated 5 out of 5 stars 686 reviews

444,960 users

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...

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 459 reviews

509,085 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

IE Tab by PCMan, yuoo2k

Rated 4 out of 5 stars 1,207 reviews

165,963 users

IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox...

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 360 reviews

120,542 users

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

ScrapBook by Gomita

Rated 4 out of 5 stars 885 reviews

136,547 users

Helps you to save Web pages and organize the collection.

ReminderFox by Tom Mutdosch, Daniel Lee

Rated 4 out of 5 stars 539 reviews

69,050 users

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.
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