Extensions by Weekly Downloads
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).
uBlock Origin Featured
Finally, an efficient blocker. Easy on CPU and memory.
Flash Video Downloader - YouTube HD Download [4K] Requires Restart
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.
Increase your browsing privacy, protection, and speed.
LastPass Password Manager Requires Restart Featured
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!
Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
Stylish Requires Restart Featured
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.
AdBlocker for YouTube™ removes all annoying Ads from YouTube
Youtube Downloader 4K - Video Downloader Requires Restart
Download from YouTube 4K videos and thousands other video websites.
HTTPS Everywhere Requires Restart
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
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!
One of the best extensions for YouTube™. All the features you need to make YouTube™ more awesome!
Protect all your valuable private data and unblock any Web restrictions!
WebRTC leaks your actual IP addresses from behind your VPN, by default.
Ad-Aware Ad Block improves your browser’s speed and protects your privacy by blocking ads and trackers. It also improves online security by blocking malicious URLs and establishing the most secure connection available.
This extension automatically sets Yahoo.com as your homepage and new tab page.
Fix the web. Gets rid of a site's cookies and LocalStorage as soon as you close its tabs. Protects against trackers and zombie-cookies. Trustworthy services can be whitelisted.