The most used 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.

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

English (GB) Language Pack

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

The en-US language pack for Firefox.

Language pack for Firefox for en-CA

Simple and seamless privacy protection for your browser: tracker blocking, cookie protection, DuckDuckGo private search, email protection, HTTPS upgrading, and much more.

Join Webex meetings using Firefox ™

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.

Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.

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.

Automatically learns to block invisible trackers.

Deutsch (DE) Language Pack

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

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

Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.

Français Language Pack

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

Improve your writing with Grammarly's communication assistance. Spell check, grammar check, and punctuation check in one tool. Real-time suggestions for improving tone and clarity help ensure your writing makes the impression you want.

Protects your browser from online threats.

Take control of YouTube and boost your user experience!

Russian (RU) Language Pack

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