The best modules ***

by Mus87

147 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,738 reviews

14,382,376 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).

Video DownloadHelper by mig

Rated 4 out of 5 stars 8,480 reviews

3,739,426 users

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

anonymoX by anonymoX GmbH

Rated 3 out of 5 stars 879 reviews

255,886 users

Easy anonymous web browsing.
– Change your IP-Address and country
– Visit blocked or censored websites.
– Delete cookies, show your public ip, and more

We provide the proxy servers, no external proxies or other programs required

LastPass Password Manager by LastPass

Rated 4 out of 5 stars 2,285 reviews

650,416 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 1,840 reviews

947,670 users

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

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,122 reviews

1,341,666 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...

Ghostery by Ghostery

Rated 4 out of 5 stars 1,612 reviews

973,752 users

Increase your browsing privacy, protection, and speed.

Simple YouTube to MP3/MP4 Converter and Downloader by Jeff

Rated 4 out of 5 stars 173 reviews

98,111 users

Download youtube videos as mp3/mp4/ogg/webm fast and easy! Adding mirrors everyday to decrease any downtime! We monitor comments and work to fix any problems as soon as possible!

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 277 reviews

217,259 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Disconnect by Disconnect

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

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,434 reviews

580,361 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.

Full Web Page Screenshots (♥♥♥♥♥) by susbox

FireShot makes full web page screenshots. Demo: http://bit.ly/RlBQMV

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Flagfox by Dave G

Rated 5 out of 5 stars 688 reviews

339,420 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...

Web Developer by chrispederick

Rated 5 out of 5 stars 279 reviews

301,337 users

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

Classic Theme Restorer by Aris

Rated 5 out of 5 stars 1,105 reviews

325,084 users

Squared tabs, appmenu, add-on bar, small button view and many more 'old' features for Firefox 29-56 (Windows / MacOSX / Linux).

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