JerryQi

by SpaceTimer

40 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,812 reviews

20,211,020 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 5 out of 5 stars 1,825 reviews

2,122,392 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 986 reviews

1,281,267 users

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

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 4 out of 5 stars 1,737 reviews

1,274,061 users

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

LastPass Password Manager by LastPass

Rated 4 out of 5 stars 1,341 reviews

730,657 users

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

iMacros for Firefox by Ipswitch

Rated 4 out of 5 stars 394 reviews

395,366 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 231 reviews

482,481 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 2,589 reviews

827,445 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.

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 450 reviews

641,892 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 652 reviews

515,502 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...

JavaScript Debugger by James Ross, Robert Ginda, others

Rated 4 out of 5 stars 50 reviews

111,664 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.

IE Tab by PCMan, yuoo2k

Rated 4 out of 5 stars 1,201 reviews

198,893 users

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

ScrapBook by Gomita

Rated 4 out of 5 stars 866 reviews

154,027 users

Helps you to save Web pages and organize the collection.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 350 reviews

140,125 users

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

ReminderFox by Tom Mutdosch, Daniel Lee

Rated 4 out of 5 stars 526 reviews

82,734 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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