Extensions are like apps for Firefox.
They add features to Firefox to make browsing faster, safer, or just plain fun.
Dark Reader
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
449,477 users
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
119,630 users
Google Search Fixer
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
2,858 users
