Extension Starter Pack — Firefox Staff Picks

New to browser extensions? Get started with a few of these incredible customization tools.

6
Add-ons

Firefox
Creator

Feb 25, 2026
Last updated

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Privacy Badger
RecommendedRecommended
Automatically learns to block hidden trackers. Made by the leading digital rights nonprofit EFF to stop companies from spying on you.
Rated 4.8 out of 5
EFF Technologists
1,905,704 users
Yomitan
RecommendedRecommended
Powerful and versatile pop-up dictionary for language learning used by 100,000+ language learners.
Rated 4.7 out of 5
Darius Jahandarie
32,971 users
Adaptive Tab Bar Color
RecommendedRecommended
Changes the color of Firefox theme to match the website’s appearance.
Rated 4.8 out of 5
Eason & Yue
47,647 users
Firefox Multi-Account Containers
By FirefoxBy Firefox
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.
Rated 4.6 out of 5
Firefox
403,984 users
Read Aloud: A Text to Speech Voice Reader
RecommendedRecommended
Read out loud the current web-page article with one click. Supports 40+ languages.
Rated 3.8 out of 5
LSD Software
211,987 users
Search by Image
RecommendedRecommended
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
Rated 4.6 out of 5
Armin Sebastian
446,822 users