Most popular Firefox add-ons in Firefox Browser Add-ons

Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.

One of the most popular free ad blockers for Firefox. Block annoying ads on sites like Facebook, YouTube and all other websites. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Capture a screenshot of the whole webpage, and save in your desktop in default.

Firefox Language Pack for English (US) (en-US)

Download videos from the web. Easy, smart, no tracking.

Automatically learns to block invisible trackers.

Firefox Language Pack for English (CA) (en-CA)

Firefox Language Pack for English (GB) (en-GB)

Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.

Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.

Actively protects your data in your current browser

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.

Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.

Firefox Language Pack for Deutsch (de) – German

Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.

Firefox Language Pack for Français (fr) – French

The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.

Returns ability to see dislike statistics on youtube

At home, at work, or on the go, Bitwarden easily secures all your passwords, passkeys, and sensitive information.

Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language.

Tampermonkey is the world's most popular userscript manager.

Join Webex meetings using Firefox ™

Improve your writing with Grammarly's AI assistance. Get spell check, grammar check, generative AI, and more in one tool. Real-time suggestions for improving tone and clarity help ensure your writing makes the impression you want.

Firefox Language Pack for Español (ES) (es-ES) – Spanish, Spain

Take control of YouTube and boost your user experience!