Useful tools

by Fleuve Rouge

35 Add-ons in this Collection

Web Developer by chrispederick

Rated 5 out of 5 stars 203 reviews

688,508 users

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

ReloadEvery by Jaap Haitsma

Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)

RESTClient, a debugger for RESTful web services. by Chao ZHOU

Rated 4 out of 5 stars 75 reviews

147,472 users

Notice: some important features (XML indentation and load old saved requests) are missing in version 2.0.0, please update to version 2.0.1.

Please follow the link ("View other versions") below To install version 2.0.1.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

304,943 users

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

Pocket by Read It Later, Inc

Rated 4 out of 5 stars 1,063 reviews

277,616 users

When you find something on the web that you want to view later, put it in Pocket. It automatically syncs to your phone, tablet or computer so you can view it at any time, even without an internet connection.

ScrapBook by Gomita

Rated 4 out of 5 stars 831 reviews

190,502 users

Helps you to save Web pages and organize the collection.

FEBE by Chuck_Baker

Rated 4 out of 5 stars 627 reviews

146,596 users

FEBE (Firefox Environment Backup Extension) allows you to quickly and easily backup your Firefox extensions. In fact, it goes beyond just backing up -- It will actually rebuild your extensions individually into installable .xpi files.

Autofill Forms by Sebastian Tschan, Egor Zindy, others

Rated 3 out of 5 stars 387 reviews

75,437 users

Autofill Forms enables you to fill out web forms with one click.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 124 reviews

171,088 users

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

Rainbow Color Tools by Heather Arthur

Rated 5 out of 5 stars 90 reviews

43,587 users

Color tools for web development.

Color picker and eyedropper + saving colors and trying out colors with drag and drop.

Multi Links by Grizzly Ape

Download Now

Experimental

Rated 4 out of 5 stars 171 reviews

31,337 users

Multi Links lets you open, copy or bookmark multiple links at the same time rather than having to do them all individually.

Restartless Restart by Erik Vold

Rated 5 out of 5 stars 175 reviews

47,281 users

This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.

Dust-Me Selectors by brothercake

Rated 4 out of 5 stars 71 reviews

18,679 users

Dust-Me Selectors is development tool to remove unused CSS selectors.

InFormEnter by M. Onyshchuk

InFormEnter adds a small, clickable icon next to every input field in a web form, from where you can select the item to be inserted - no typing required.

View Source Chart by Jennifer Madden

Rated 5 out of 5 stars 103 reviews

18,573 users

Inspect the DOM at lightning speed.
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