The Electronic Frontier Foundation (EFF) has released Privacy Badger for Safari on macOS, bringing its free tracker-blocking extension to Apple’s desktop browser.
The extension requires Safari 26.5 or later and is available through the Mac App Store.
The launch of Privacy Badger for macOS fulfills a longstanding user request. EFF credits recent improvements in Safari’s extension support with making the release possible, saying Privacy Badger now supports all major desktop browsers.
EFF is a member-supported nonprofit that defends digital privacy and free expression through litigation, advocacy, and software development. The organization says more than four million people already use Privacy Badger to limit online tracking.
The extension targets third-party trackers embedded in websites, which can collect browsing information and feed it into advertising and data broker systems. EFF warns that people have little visibility into who ultimately purchases that information or how it is used.
Additional protection for Safari
EFF describes Privacy Badger as an additional layer of protection alongside Safari’s existing privacy features. In its default browsing mode, Safari restricts the information trackers can access while still permitting them to load. Privacy Badger blocks identified trackers from loading, reducing opportunities to collect data through methods that evade those restrictions.
The extension can also operate alongside an ad blocker or Safari’s advanced settings for blocking trackers across all windows.
Privacy Badger uses algorithmic detection to identify tracking behavior. By default, installations receive tracker knowledge through periodic updates generated by EFF’s automated training system, rather than learning from each user’s browsing activity. EFF disabled local learning by default in 2020 because individually learned blocking behavior could make users more identifiable.
Its protections also cover embedded content such as social media posts, comment sections, and video players. These components can communicate with their providers even without user interaction. Privacy Badger replaces supported tracking widgets with placeholders, allowing visitors to activate them when needed.
The extension also automatically sends the Global Privacy Control (GPC) signal, communicating a request to opt out of personal information sales or sharing. EFF notes that applicable privacy laws make this signal legally binding in several U.S. states, including California, Colorado, New Jersey, and Connecticut.
Privacy Badger focuses on tracking prevention, so users should not expect it to remove every advertisement. EFF’s documentation explains that ads may remain visible when they do not perform the tracking the extension targets.
If blocking interferes with a website, users can disable Privacy Badger for that site through its pop-up while retaining protection elsewhere. The same interface includes a “Report broken site” button to notify EFF of compatibility problems.
Installation and availability
Mac users can download Privacy Badger through the App Store, then enable it under Safari → Settings → Extensions. Apple provides separate controls for allowing extensions in private browsing windows.
Safari for iOS is not supported by this release. EFF plans to investigate support after addressing issues with the macOS version, but it has not announced a release date.
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