The 25 most popular Firefox add-ons in Firefox Browser Add-ons
Add-ons (also known as extensions) are small programs that run inside web browsers like Mozilla Firefox. They add extra features to the browser without having to download anything new. You can use extensions to make browsing faster, easier, and safer. Some extensions even let you do things like translate text on websites, search the web, and play games.
There are over 28,000 Firefox-addons and 480,000 themes, making it hard to find the best ones. so we have created a way to sort through all of them. Use the dropdown above to set different filters. Add-ons are sorted by number of active users.
To set even more advanced filters, and sort the Firefox add-ons differently, please visit our Advanced search tool. Note that Advanced search tool is only available to premium members.
![uBlock Origin](https://addons.mozilla.org/user-media/addon_icons/607/607454-64.png?modified=mcrushed)
#1, uBlock Origin
![uBlock Origin](https://addons.mozilla.org/user-media/addon_icons/607/607454-64.png?modified=mcrushed)
![Adblock Plus](https://addons.mozilla.org/user-media/addon_icons/1/1865-64.png?modified=mcrushed)
#2, Adblock Plus
![Adblock Plus](https://addons.mozilla.org/user-media/addon_icons/1/1865-64.png?modified=mcrushed)
![Easy Screenshot](https://addons.mozilla.org/user-media/addon_icons/431/431482-64.png?modified=1650363005)
#3, Easy Screenshot
![Easy Screenshot](https://addons.mozilla.org/user-media/addon_icons/431/431482-64.png?modified=1650363005)
![Language: English (US)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#4, Language: English (US)
![Language: English (US)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![AdBlocker Ultimate](https://addons.mozilla.org/user-media/addon_icons/686/686646-64.png?modified=b187a374)
#5, AdBlocker Ultimate
![AdBlocker Ultimate](https://addons.mozilla.org/user-media/addon_icons/686/686646-64.png?modified=b187a374)
![Video DownloadHelper](https://addons.mozilla.org/user-media/addon_icons/3/3006-64.png?modified=101feb6e)
#6, Video DownloadHelper
![Video DownloadHelper](https://addons.mozilla.org/user-media/addon_icons/3/3006-64.png?modified=101feb6e)
![Language: English (GB)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#7, Language: English (GB)
![Language: English (GB)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![Language: English (CA)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#8, Language: English (CA)
![Language: English (CA)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![DuckDuckGo Privacy Essentials](https://addons.mozilla.org/user-media/addon_icons/385/385621-64.png?modified=1f1a9707)
#9, DuckDuckGo Privacy Essentials
![DuckDuckGo Privacy Essentials](https://addons.mozilla.org/user-media/addon_icons/385/385621-64.png?modified=1f1a9707)
![AdBlock for Firefox](https://addons.mozilla.org/user-media/addon_icons/532/532754-64.png?modified=d96e390b)
#10, AdBlock for Firefox
![AdBlock for Firefox](https://addons.mozilla.org/user-media/addon_icons/532/532754-64.png?modified=d96e390b)
![Privacy Badger](https://addons.mozilla.org/user-media/addon_icons/506/506646-64.png?modified=mcrushed)
#11, Privacy Badger
![Privacy Badger](https://addons.mozilla.org/user-media/addon_icons/506/506646-64.png?modified=mcrushed)
![Dark Reader](https://addons.mozilla.org/user-media/addon_icons/855/855413-64.png?modified=3f34e276)
#12, Dark Reader
![Dark Reader](https://addons.mozilla.org/user-media/addon_icons/855/855413-64.png?modified=3f34e276)
![AdGuard AdBlocker](https://addons.mozilla.org/user-media/addon_icons/520/520576-64.png?modified=mcrushed)
#13, AdGuard AdBlocker
![AdGuard AdBlocker](https://addons.mozilla.org/user-media/addon_icons/520/520576-64.png?modified=mcrushed)
![To Google Translate](https://addons.mozilla.org/user-media/addon_icons/445/445852-64.png?modified=mcrushed)
#14, To Google Translate
![To Google Translate](https://addons.mozilla.org/user-media/addon_icons/445/445852-64.png?modified=mcrushed)
![Ghostery – Privacy Ad Blocker](https://addons.mozilla.org/user-media/addon_icons/9/9609-64.png?modified=3e27332a)
#15, Ghostery – Privacy Ad Blocker
![Ghostery – Privacy Ad Blocker](https://addons.mozilla.org/user-media/addon_icons/9/9609-64.png?modified=3e27332a)
![Facebook Container](https://addons.mozilla.org/user-media/addon_icons/954/954390-64.png?modified=97d4c956)
#16, Facebook Container
![Facebook Container](https://addons.mozilla.org/user-media/addon_icons/954/954390-64.png?modified=97d4c956)
![Language: Deutsch (German)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#17, Language: Deutsch (German)
![Language: Deutsch (German)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![Cisco Webex Extension](https://addons.mozilla.org/user-media/addon_icons/735/735601-64.png?modified=3d8fe326)
#18, Cisco Webex Extension
![Cisco Webex Extension](https://addons.mozilla.org/user-media/addon_icons/735/735601-64.png?modified=3d8fe326)
![Language: Français (French)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
#19, Language: Français (French)
![Language: Français (French)](https://addons.mozilla.org/static-server/img/addon-icons/default-64.d144b50f2bb8.png)
![Honey](https://addons.mozilla.org/user-media/addon_icons/415/415198-64.png?modified=mcrushed)
#20, Honey
![Honey](https://addons.mozilla.org/user-media/addon_icons/415/415198-64.png?modified=mcrushed)
![Grammarly: AI Writing and Grammar Checker App](https://addons.mozilla.org/user-media/addon_icons/566/566314-64.png?modified=6abb09f6)
#21, Grammarly: AI Writing and Grammar Checker App
![Grammarly: AI Writing and Grammar Checker App](https://addons.mozilla.org/user-media/addon_icons/566/566314-64.png?modified=6abb09f6)
![Bitwarden Password Manager](https://addons.mozilla.org/user-media/addon_icons/735/735894-64.png?modified=27707d93)
#22, Bitwarden Password Manager
![Bitwarden Password Manager](https://addons.mozilla.org/user-media/addon_icons/735/735894-64.png?modified=27707d93)
#23, Activist – Balanced
![IDM Integration Module](https://addons.mozilla.org/user-media/addon_icons/797/797233-64.png?modified=5769629f)
#24, IDM Integration Module
![IDM Integration Module](https://addons.mozilla.org/user-media/addon_icons/797/797233-64.png?modified=5769629f)
![Return YouTube Dislike](https://addons.mozilla.org/user-media/addon_icons/2729/2729178-64.png?modified=aa0eaf60)
#25, Return YouTube Dislike
![Return YouTube Dislike](https://addons.mozilla.org/user-media/addon_icons/2729/2729178-64.png?modified=aa0eaf60)