by Nijyuu

51 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,818 reviews

19,715,323 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 6,622 reviews

4,247,673 users

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

Flash Video Downloader - YouTube HD Download [4K] by Artur Dubovoy

Rated 4 out of 5 stars 639 reviews

1,024,688 users

Flash Video Downloader helps you download any video (flv, mp4, HD) from YouTube, Facebook, Break, Metacafe and more in one click. You can download mp3, music (iPod), avi and more. Download Flash games. Download Helper. 4K download.

YouTube Video and Audio Downloader by InBasic, Alopepeo

Rated 4 out of 5 stars 327 reviews

700,992 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.

Download Flash and Video by Download Flash and Video

Rated 4 out of 5 stars 369 reviews

660,019 users

Download Flash and Video is a great download helper tool that lets you download Flash games and Flash videos (YouTube, Facebook, Dailymotion, Google Videos and more) with a single click.
The downloader is very easy to use.

Adblock Plus Pop-up Addon by Jesse Hakanen

Rated 5 out of 5 stars 198 reviews

1,066,473 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.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 992 reviews

1,253,138 users

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

Google Translator for Firefox by nobzol

Rated 4 out of 5 stars 340 reviews

761,007 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.

YouTube High Definition by Baris Derin

Rated 5 out of 5 stars 232 reviews

280,295 users

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

Fasterfox by RsCcman Production

Download Now

Experimental

Rated 4 out of 5 stars 94 reviews

101,074 users

The One; The Original Fasterfox Gives performance & network tweaks for Firefox. Fasterfox makes your browsing so much faster!
Make your Sites Faster than a Fox with Fasterfox for FireFox!

FireGestures by Gomita

Rated 4 out of 5 stars 924 reviews

354,906 users

A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,273 reviews

352,111 users

Direct access to your most visited websites

YouTube ALL HTML5 by Klemens Schölhorn

Rated 4 out of 5 stars 150 reviews

111,851 users

Play all videos on youtube without flash in your preferred size using only HTML5.

Download Manager Tweak by squashr1979, andman42

Rated 4 out of 5 stars 428 reviews

62,212 users

Allows the download manager to also open in a tab or sidebar, and adds some optional display changes.

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,418 reviews

183,161 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.
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