Extension Starter Pack — Firefox Staff Picks
New to browser extensions? Get started with a few of these incredible customization tools.
- 5
- Add-ons
- Firefox
- Creator
- May 13, 2025
- Last updated

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.
Rated 4.6 out of 5Firefox
377,984 users

Read Aloud: A Text to Speech Voice Reader
Read out loud the current web-page article with one click. Supports 40+ languages.
Rated 3.8 out of 5LSD Software
202,238 users

Search by Image
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 5Armin Sebastian
439,088 users

Grammar and Spell Checker - LanguageTool
With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
Rated 4.7 out of 5LanguageTooler GmbH
393,907 users

Privacy Badger
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 5EFF Technologists
1,807,251 users