Add-ons for Firefox (en-US)

RECOMMENDED

Sink It for Reddit

Serenity for your Reddit experience.

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Extensions are like apps for Firefox.

They add features to Firefox to make browsing faster, safer, or just plain fun.

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YouTube customization

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Privacy & Security

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Reddit extensions

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Recommended extensions

YouTube Search Fixer
Remove ALL distracting search results, redirect shorts back to legacy page and try little visual changes suited for low resolution screens.
Rated 4.4 out of 5
Phoenix
33,818 users
Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Rated 4.4 out of 5
Trishul
20,669 users
Notefox: websites notes
Take notes on every website in a smart and simple way!
Rated 4.4 out of 5
Saverio Morelli (Sav22999)
12,482 users
Feedbro
Advanced Feed Reader - Read news & blogs or any RSS/Atom/RDF source.
Rated 4.4 out of 5
Nodetics
41,369 users

Recommended themes

Ant Parade
Rated 5 out of 5
Fyreheart
249 users
Bugcrowd (2021)
Rated 4.9 out of 5
Hexadorsip
5,218 users
17-1
Rated 5 out of 5
redcardinal
495 users

Tab managers

Tab Session Manager
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
Rated 4.2 out of 5
sienori
161,216 users
Auto Tab Discard
Increase browser speed and reduce memory load and when you have numerous open tabs.
Rated 4.5 out of 5
tlintspr
95,219 users
OneTab
Save up to 95% memory and reduce tab clutter
Rated 4.1 out of 5
OneTab Team
158,014 users
Tab Reloader (page auto refresh)
An easy-to-use tab reloader with custom reloading time settings for individual tabs
Rated 4.1 out of 5
James Fray
77,636 users

Gaming & media extensions

Enhancer for YouTube™
Take control of YouTube and boost your user experience!
Rated 4.7 out of 5
Max RF
573,485 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
Rated 4.8 out of 5
Ajay (SponsorBlock)
790,701 users
Return YouTube Dislike
Returns ability to see dislike statistics on youtube
Rated 4.5 out of 5
Dmitry Selivanov
907,928 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 5
LSD Software
223,659 users

Accessibility extensions

Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Rated 4.5 out of 5
Dark Reader Ltd
1,322,886 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 5
LSD Software
223,659 users
Dark Mode
Dark theme and night shift mode for every website. Care your eyes, use Dark Mode for night and daily web browsing.
Rated 3.2 out of 5
Dark Mode
50,268 users
Sidebery
Vertical tabs tree and bookmarks in sidebar with advanced containers configuration, grouping and many other features.
Rated 4.7 out of 5
mbnuqw
53,258 users

“youtube” tagged extensions

Video Download Helper
Download videos from the web. Easy, smart, no tracking.
Rated 4.3 out of 5
vdh
1,807,465 users
Ghostery – Privacy Ad Blocker
The best privacy tool and ad blocker extension for Firefox. Stop trackers, speed up websites and block ads everywhere including YouTube and Facebook.
Rated 4.4 out of 5
Ghostery
1,011,958 users
Return YouTube Dislike
Returns ability to see dislike statistics on youtube
Rated 4.5 out of 5
Dmitry Selivanov
907,928 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
Rated 4.8 out of 5
Ajay (SponsorBlock)
790,701 users