Add-ons

by sloprlek

860 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,858 reviews

21,309,007 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).

anonymoX by NilsHügelmann, ochristi, others

Rated 3 out of 5 stars 154 reviews

560,511 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

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,767 reviews

2,457,599 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...

Download YouTube Videos as MP4 by ialc

Rated 4 out of 5 stars 335 reviews

1,001,552 users

An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,570 reviews

1,444,829 users

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

1-Click YouTube Video Download by The 1-Click YouTube Video Download Team

Rated 4 out of 5 stars 482 reviews

747,567 users

The simplest YouTube Video Downloader for all YouTube Flash sites, period.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 946 reviews

1,303,985 users

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

Adblock Plus Pop-up Addon by Jesse Hakanen

Rated 5 out of 5 stars 171 reviews

1,265,799 users

Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

YouTube Video and Audio Downloader by InBasic, Alopepeo

Rated 4 out of 5 stars 256 reviews

658,869 users

Downloads YouTube videos in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice. It also contains a pure JavaScript library to extract the ORIGINAL audio file embedded in video files.

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 484 reviews

1,043,824 users

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

Lightning by Mozilla Calendar Project

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Web of Trust - WOT by WOT Services

Rated 3 out of 5 stars 1,581 reviews

1,152,216 users

Find out which websites you can trust. WOT adds intuitive traffic light-style icons next to search results and URLs to help you make informed decisions about whether to visit a site or not.

YouTube mp3 by Philip

Rated 4 out of 5 stars 205 reviews

705,011 users

Adds a download button to YouTube. By clicking on it you can download the video as a high quality mp3 file.

Google Translator for Firefox by nobzol

Rated 4 out of 5 stars 298 reviews

769,215 users

With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.

Stylish by Jason Barnabe

Rated 4 out of 5 stars 734 reviews

745,216 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.
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