uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
6,484,502 users
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
2,121,959 users
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
1,152,439 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
926,527 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
741,901 users
NoScript Security Suite
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.
326,414 users
AdNauseam
Blocking ads and fighting back against advertising surveillance.
48,895 users
Webmail Ad Blocker
Remove advertising clutter from your web-based email. Expand your viewable area by blocking and removing ads on the right-hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
29,280 users
AdBlock for Firefox
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.
1,140,514 users
Malwarebytes Browser Guard
The fastest and safest web browsing experience.Secure your privacy by blocking trackers, blocking ads, and blocking malicious content.
555,827 users
Popup Blocker Ultimate
Best Popup Blocker for Firefox. (Best in Rating, Performance, This addon does NOT track user activities same as others)If your Firefox version is not 57+ please install version 8.1 from Official website.
61,614 users
Norton AntiTrack
Feel like you have little to no control over what information the sites you visit collect and share? Norton AntiTrack* for Windows can help. * Norton AntiTrack is only available on Windows PCs and always requires the Windows disclaimer.
36,982 users
FastForward
Don't waste time with compliance. Use FastForward to skip annoying URL "shorteners".
31,329 users
Free VPN Proxy & Ad Blocker - Planet VPN
Unblock access to any website with our free VPN proxy Mozilla extension - Planet VPN
29,740 users
I still don't care about cookies
Community version of the popular extension "I don't care about cookies" https://github.com/OhMyGuus/I-Dont-Care-About-Cookies
18,584 users
You.com | The Search Engine You Control
Sets Firefox's default search engine to You.com
13,872 users
Purple Ads BlockerPurple Ads Blocker
Purple AdBlock is a adblock for Twitch.tv
7,287 users
Better Twitch Adblock
Blocks Video Ads on Twitch.tv.
6,901 users
Ad Blocker for Facebook™
Remove unwanted contents on the Facebook website, including sponsored posts and recommended pages/groups. Supports both desktop and mobile Firefox.
5,491 users
VPN Unlimited Proxy - Best VPN browser extension
VPN Unlimited - reliable, easy-to-use, and lightning-fast VPN extension for Firefox browser
5,021 users
KellyC Show YouTube Dislikes
Show dislikes on Youtube ** Extension can be disabled after update \ install by default - check it is enabled - then restart browser if not work **
3,328 users
Script Blocker Ultimate (NoScript, Disable JS)
Best Script Blocker for Firefox. (Best in Performance, This addon does NOT track user activities same as others)
2,631 users
Popupblocker
Popupblocker can block every popup. Many websites open new windows with ads, when you try to mark text or click something. This add-on will block these and show a really small notification.
2,576 users
Circle reader
The best free reading assistant (reader mode) that enhances the web page reading experience. Ads are too distracting, the colors are too ugly, the fonts are too small to see clearly, the typography is too messy to find the text, does it really need
2,272 users
Element Blocker
Block popups, banners, chat widgets, notification bars, and more from appearing on any website.
2,088 users