uBlock Origin
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
10,468,374 users
Decentraleyes
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
257,991 users
FoxyTab
Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer
20,448 users
Port Authority
Blocks malicious websites from port-scanning your computer/network and dynamically blocks all LexisNexis endpoints from running their invasive data collection scripts.
20,266 users
AdGuard AdBlocker
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
1,624,620 users
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
1,269,940 users
Bitwarden Password Manager
At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information.
936,720 users
Malwarebytes Browser Guard
Fast and safe browsing that protects your privacy. Block trackers, ads, phishing, and malicious content—so you stay secure and in control.
457,626 users
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
445,025 users
Firefox Multi-Account Containers
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs. Cookies are separated by container, allowing you to use the web with multiple accounts and integrate Mozilla VPN for an extra layer of privacy.
399,294 users
1Password: Password Manager
The best way to experience 1Password in your browser. Easily sign in to sites, generate passwords, and store secure information, including logins, credit cards, notes, and more.
383,341 users
Kaspersky Protection 2021
Your protection on the Internet with extension from Kaspersky Lab
345,110 users
NordVPN - a VPN proxy extension for Firefox
Looking for the best VPN extension for Firefox? NordVPN's Firefox VPN proxy extension lets you hide your IP, change your virtual location, and stay safe online with a click. Get a fast, secure, and unlimited VPN for Firefox!
296,946 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.
263,069 users
Firefox Relay
Firefox Relay lets you generate email aliases that forward to your real inbox. Use it to hide your real email address and protect yourself from hackers and unwanted mail.
246,574 users
Web Threat Shield
Keeps you safe when browsing the web by identifying and blocking dangerous websites.
224,540 users
ESET Browser Privacy & Security
Enjoy extended browser protection with ESET Browser Privacy & Security—includes the unique Metadata Cleanup, Secure Search and more.
212,746 users
iCloud Passwords
iCloud Passwords lets you fill passwords from iCloud Keychain when signing in to websites using Firefox.
136,578 users
KeePassXC-Browser
Official browser plugin for the KeePassXC password manager (https://keepassxc.org).
130,696 users
Proton Pass
Free and unlimited password manager to keep your login credentials safe and manage them directly in your browser.
128,222 users
NordPass® Password Manager & Digital Vault
NordPass is your freedom from password stress. Generate and securely store strong passwords and autofill them with a single click.
119,741 users
Surfshark VPN Extension
Browse the web safely with secure, private internet access for the Firefox browser extension.
109,118 users
Proton VPN: Fast & Secure
Secure your internet and protect your online privacy in one click.
103,220 users
