Shield vs uBlock Origin vs Privacy Badger: What Actually Does What

uBlock Origin is the best content blocker on the internet, and it’s not particularly close. If you’re only going to install one privacy extension, install uBlock.

We’re not trying to replace it.

What uBlock does

uBlock is a filter-based blocker. It uses community-maintained lists (EasyList, EasyPrivacy, and others) to block known trackers, ads, and malware domains before they load. It’s fast, thorough, and battle-tested. The developer, gorhill, has consistently refused monetization that would compromise the tool. It’s the gold standard for blocking.

But blocking is all it does. You visit a news site, uBlock silently kills 47 trackers in the background, and you never know how bad that site was in the first place. The threat is invisible, and so is the protection. That’s fine if you’re technical enough to dig into the logger and read filter lists, but most people aren’t.

What Privacy Badger does

Privacy Badger takes a different approach. Instead of predefined lists, it learns. It watches which domains track you across multiple sites and gradually blocks them. This catches trackers that aren’t on any list yet.

The downside: it’s reactive. It needs time to learn. And it doesn’t give you any aggregate picture of your privacy. You can see which domains it blocked on a given page, but there’s no score, no trend, no big picture.

What Shield does

Shield scores every site S through F on privacy. Not just “we blocked some things,” but an actual grade with a dashboard and trends over time. You can see which sites are worst, how your browsing privacy has changed this week, and what specific threats each site presents.

It also auto-rejects cookie consent banners and detects fingerprinting. But the core value is the score.

Why the grade matters

Blocking alone is like having a security system that silently disarms intruders without ever telling you someone tried to break in. You’re protected, but you have no idea what you’re being protected from.

When you see that your favorite recipe blog scores an F because it runs 60 trackers and fingerprints your device, you make different choices. Maybe you find a different blog, complain to the site owner, or just understand concretely why privacy tools matter.

Visibility creates agency in a way that blocking alone never can.

Use them together

This isn’t either/or. The best setup is layering them together.

uBlock handles the blocking: it kills trackers before they load, removes ads, and keeps your browser fast. Shield handles the scoring: it tells you what the site tried to do, grades it, and tracks your privacy over time. Together, you get both protection and visibility.

Privacy Badger can layer on top of both, catching novel trackers that slip past uBlock’s filter lists. Brave users get built-in protections plus Shield’s grading if they install the extension.

There’s no conflict between these tools. They complement each other.

The honest pitch

If you care about privacy and you’re only going to do one thing, install uBlock Origin. It’s free and it’s the most effective blocker available.

If you want to understand what the web is actually doing to you rather than just blocking it silently, add Shield. The grade turns an invisible problem into something you can see and act on, and the web won’t get better until people can see how bad it is.