Explore powerful tools and features to customize Firefox and make the browser all your own.
An easy-to-use font inspector to get CSS styles of the selected element
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).
Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!
This extension changes page colors, brightness and contrast to increase readability and brings dark night mode to all websites.
Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+! >Latest builds on Github!<
Play game Flappy Bird when you open a new tab. Try to fly the bird as far as you can without hitting a pipe!
Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.
Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!
Download any video from YouTube to your favorite format.
2018 updated downlaod helper for YouTube. Download any video from YouTube to MP3, MP4, WEBM, M4A or 3GP. Subtitles and thumbnails also available for download with a single mouse click!
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Gemalto Web Signer is a digital signature−based software solution designed to protect and secure Internet transactions. © Gemalto 2018