Blackart test add-ons

by Black_Art

17 Add-ons in this Collection

Video DownloadHelper by mig

Rated 4 out of 5 stars 5,331 reviews

5,154,364 users

The easy way to download and convert Web videos from hundreds of YouTube-like sites.

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,767 reviews

2,432,636 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...

Web Developer by chrispederick

Rated 5 out of 5 stars 209 reviews

599,368 users

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

Evernote Web Clipper by Evernote

Rated 3 out of 5 stars 766 reviews

416,837 users

Use the Evernote Web Clipper to save things you see on the web into your Evernote account.

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,226 reviews

441,067 users

Direct access to your most visited websites

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 300 reviews

267,898 users

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

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,383 reviews

230,108 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.

Download Statusbar by C.J.

Download Now

Experimental

Rated 4 out of 5 stars 1,461 reviews

566,256 users

View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.

Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao

Firefinder for Firebug by Robert Nyman

Rated 3 out of 5 stars 28 reviews

24,777 users

Finds HTML elements matching chosen CSS selector(s) or XPath expression

Searchbar Autosizer by Kevin Cox

Rated 4 out of 5 stars 186 reviews

12,898 users

Autosizes the searchbar as you type, cleans the query or reverts to your default search engine after submitting. Supports almost all themes and various search bar related extensions. Useful for saving space on a small screen.

Ubiquity by matyr

Download Now

Experimental

Rated 5 out of 5 stars 120 reviews

1,372 users

An extension that allows for the use of dynamic commands in Firefox.

Mac Shortcuts by Mikel Ward

Rated 4 out of 5 stars 7 reviews

282 users

Adds some Mac keyboard shortcuts to Firefox on Windows and Linux.

CSS validator by Michael Langley

Rated 3 out of 5 stars 10 reviews

853 users

Validates a page using the W3C CSS Validator.

Mozilla Labs - Jetpack Prototype by Mozilla Labs

Rated 4 out of 5 stars 27 reviews

284 users

Jetpack Prototype is an experiment in making it easy to build Firefox add-ons using common web technologies.

Stop-or-Reload Button by Caio Chassot

Rated 5 out of 5 stars 111 reviews

1,373 users

A Stop-or-Reload...
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