Explore powerful tools and features to customize Firefox and make the browser all your own.
See who’s tracking you online and protect your privacy with Ghostery.
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
Block distracting websites when you are browsing the web. You can list websites that you don't want to visit in the settings. You can quickly turn the extension on or off from the toolbar.
Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
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!
Adds a bar to show the status of your downloads
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.