Explore powerful tools and features to customize Firefox and make the browser all your own.
Prevent tabs opened by a hyperlink from hijacking the previous tab by adding the rel=noopener attribute to all hyperlinks (excluding same-domain hyperlinks).
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. Fit-to-width zooming can be applied to pages automatically. Fit-to-window scaling can be applied to small images.
FVD Speed Dial ★ Most popular ★ New Tab Page replacement. 1) The Fastest access to your Favorite and most Visited websites! 2) Start Page with 3D view 3) Synchronization and local file backup 4) Organize in groups 5) Many customization options
Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.
A secure and free password manager for all of your devices.
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
Spoofs User-Agent strings of your browser with a new one globally, randomly or per hostname
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Image Search Options provides a set of highly customizable reverse image search context menu options.