Firefox Add-ons

The most efficient ad and tracker blocker for Firefox with advanced filtering capabilities and low resource usage.

Open-source password manager with cross-platform sync, secure sharing, and two-factor authentication.

EFF-developed add-on that automatically learns to block invisible trackers as you browse the web.

Shows tabs in a tree structure in the sidebar, making it easy to manage large numbers of open tabs.

Maximum protection for Firefox by allowing active content to run only from sites you trust.