Explore powerful tools and features to customize Firefox and make the browser all your own.
Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
Easily download most popular video formats.
Tons of features to improve your user experience on YouTube™.
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+! Release builds Beta builds
Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!
Displays the number of unread messages and allows you to reply without going into VK!
Verify a Tails download
Free YouTube to MP3 Button allows you to save music in Mp3 just in 1 click! All you need to do is to click Convert to mp3 straight at the page of the required video. Fast and simple!
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.
Adds a bar to show the status of your downloads