Looking at DNDShield next to uBlock Origin? Here's an honest comparison — what's the same, what's different, and which one might fit you better.

First — which uBlock Origin are you comparing against?

As of 2026 this depends on your browser, and it changes the comparison quite a lot.

• On Firefox, Brave or Opera — you can still install the full uBlock Origin. Firefox kept the blocking webRequest API it relies on, and Brave hosts Manifest V2 extensions on its own servers despite being Chromium-based. Everything below applies as written.
• On Chrome or Edge — the full version is no longer an option. Chrome disabled Manifest V2 in Chrome 138 and removes the remaining MV2 extensions from its store on 31 August 2026; Edge began its own phase-out in August 2026. What's available there is uBlock Origin Lite, a separate Manifest V3 extension from the same developer.

uBO Lite is a capable blocker and worth saying so — it's not a stripped-out shell. But it is narrower in specific ways: no dynamic filtering, no per-site rule editing of the kind uBO power users rely on, and a rule set bounded by Manifest V3's platform limits. If what drew you to uBlock Origin was the fine-grained control, that's the part that doesn't come across to Chrome and Edge.

Worth being straight about where this leaves DNDShield: it's Manifest V3 too, so it lives under the same platform limits uBO Lite does. It isn't exempt from the constraint — it was just built around it from the start rather than adapted to it. On Firefox, where those limits don't apply, both run with more headroom. Full timeline: What is Manifest V3.

What both do well

Both features" class="doc-internal-link">block ads, trackers, and popups using the same category of filter lists (EasyList, EasyPrivacy), and both run without slowing your browser down.

Where they differ

Video-platform handling

uBlock Origin blocks at the network and cosmetic level and generally doesn't have dedicated logic for in-player video ads. DNDShield adds purpose-built handling for YouTube, Twitch, Dailymotion, and Crunchyroll — detecting the ad the moment it starts and muting/speeding through it (or auto-skipping, on paid plans), rather than leaving it to a generic filter list.

Model

uBlock Origin is fully free and open source, maintained by an individual developer with no paid tier. DNDShield's core ad and tracker blocking is also free, with paid plans adding the video-platform handling above, cloud sync, and extended history.

Redirect and popup protection

Both stop many forced redirects and pop-unders through filter lists; DNDShield adds a dedicated redirect protection layer that watches for gesture-less window/tab hijacks specifically. See how it works.

Which should you use?

If you mainly want lean, no-frills ad and tracker blocking and are comfortable with a fully open-source, single-maintainer project, uBlock Origin is a solid, well-regarded choice. If you also watch a lot of YouTube, Twitch, Dailymotion, or Crunchyroll and want dedicated handling for those, or want an account with sync across devices, DNDShield adds that layer on top of the same core blocking.

FAQ

Can I use both at once? Running two ad blockers together isn't recommended — they can conflict and duplicate rule processing. Pick one.

Is DNDShield open source like uBlock Origin? No — DNDShield uses the same class of public filter lists (EasyList, EasyPrivacy) but isn't itself open source.

Which blocks more? For standard web ads and trackers, both use overlapping filter lists and perform similarly. The difference shows up on video platforms, where DNDShield's dedicated handling goes further.

On Firefox specifically? See the full writeup: Best ad blocker for Firefox.

Get started: Install DNDShield · Compare plans