Extensions by Weekly Downloads

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Adblock Plus Featured

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).

Rated 5 out of 5 stars (5,659)
666,436 weekly downloads

Search and New Tab by Yahoo

This Add-on sets your default Search to Yahoo, and it brings a fresh look to every new tab page, powered by Yahoo.

Rated 3 out of 5 stars (35)
302,286 weekly downloads

Image Assistant Requires Restart

Opens images in any external viewer (having saved them on local disk), thus providing zooming, rotating, & other rich functionality not available by default (including any editing features supported by the viewer). Or 1-click-save without opening...

Rated 4 out of 5 stars (33)
288,404 weekly downloads

uBlock Origin Featured

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (2,192)
247,130 weekly downloads

Video DownloadHelper

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

Rated 4 out of 5 stars (8,241)
222,075 weekly downloads

Privacy Badger Compatible with Firefox 57+ Featured

Protects your privacy by blocking spying ads and invisible trackers.

Rated 4 out of 5 stars (172)
194,506 weekly downloads

Flash Video Downloader - YouTube HD Download [4K]

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.

Rated 4 out of 5 stars (2,517)
90,850 weekly downloads

anonymoX

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

Rated 3 out of 5 stars (798)
90,776 weekly downloads

AdBlock for Firefox Compatible with Firefox 57+ Featured

The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.

Rated 4 out of 5 stars (130)
79,620 weekly downloads

1-Click YouTube Video Download Requires Restart

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

Rated 4 out of 5 stars (544)
76,684 weekly downloads

Enhancer for YouTube™ Compatible with Firefox 57+ Featured

Tons of features to improve your user experience on YouTube™.

Rated 5 out of 5 stars (134)
74,382 weekly downloads

LastPass Password Manager

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Rated 4 out of 5 stars (2,116)
66,010 weekly downloads

Hoxx VPN Proxy

Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.

Rated 5 out of 5 stars (2,977)
64,596 weekly downloads

Greasemonkey Requires Restart Featured

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

Rated 4 out of 5 stars (1,159)
63,754 weekly downloads

DownThemAll! Featured

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

Rated 4 out of 5 stars (1,806)
60,723 weekly downloads

NoScript Security Suite Requires Restart Featured

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,585)
55,184 weekly downloads

Download Flash and Video Requires Restart

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.

Rated 4 out of 5 stars (431)
54,303 weekly downloads

Awesome Screenshot Plus - Capture, Annotate & More Compatible with Firefox 57+ Featured

Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!

Rated 4 out of 5 stars (1,567)
53,702 weekly downloads

Firebug

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...

Rated 4 out of 5 stars (2,108)
51,994 weekly downloads