fp.

Firefox 149 ships adblock-rust (Brave's Rust engine, MPL-2.0) completely disabled with no UI. It's controlled by two about:config prefs with no WebExtension API, so you can't touch them programmatically from a standard extension.

This extension gives it a UI: ETP toggle (via browser.privacy API, instant), filter list manager with clipboard helpers for the manual about:config steps, and 8 preset lists. You can also add your own if you so desire.

Comments

kgwxd•2h ago

Don't want it. Tracker/Ad blocking should forever be an extension, maintained by someone with zero obligation to, or association with, the ad/tracking industry. A USER agent.

mp3geek•2h ago

The lists are maintained same as extensions.

RandomGerm4n•1h ago

One thing doesn't rule out the other. Just because a browser has a built-in adblocker doesn't mean you can't replace it with another one if it's not working well. Every browser should have at least a basic adblocker enabled by default. Anything else is a major security risk. In the context of web browsers ads are the main entry point for malware. Either through exploits delivered via ad banners or by tricking users into downloading something. Many search engines such as Google display fake search results that lead to infected versions of otherwise secure software. Additionally some sites offering downloads have ads disguised as download buttons that lead to something else. A browser manufacturer should try to protect its users from such things.

jasonlotito•29m ago

"https://easylist.to/easylist/easylist.txt",

"https://easylist.to/easylist/easyprivacy.txt",

"https://secure.fanboy.co.nz/fanboy-cookiemonster.txt",

"https://raw.githubusercontent.com/uBlockOrigin/uAssets/refs/..."

These are the lists you say you do not want being used.

Please explain how these lists and the people who maintain them are compromised by someone with an obligation or association with the ad/tracking industry. This would be revelatory.

embedding-shape•2h ago

> Disable Firefox's built-in Enhanced Tracking Protection so adblock-rust handles blocking instead.

What concrete and practical differences are there between the two? I'm guessing because this exists, adblock-rust somehow is better than the built-in ETP? In what way?

I'm using ETP + uBlock Origin right now, and can't remember the last time I saw an ad, if I used this instead, what practical differences would I notice?

ernesth•2h ago

I've been using ETP plus adblock-rs in Waterfox for 2 weeks. I don't see much a difference compared to ETP + ublock origin apart from some cosmetic filtering. The fact that it's not an extension supposedly allows to block at more layers so it's theoretically better than an extension (https://github.com/BrowserWorks/waterfox/issues/4182)

Note that there are (were?) also some small bugs in the waterfox integration (such as the configuration options sometimes disappearing).

HelloUsername•2h ago

Relevant recent discussion: "Firefox Has Integrated Brave's Adblock Engine" https://news.ycombinator.com/item?id=47897891 25-apr-2026 248 comments

2ndorderthought•2h ago

Cool project but I have to ask. Why not use brave?

nemomarx•1h ago

You might want to not use chromium?

monegator•1h ago

why use brave, really, when you have firefox? I get it if you're on iOS

RandomGerm4n•1h ago

I’m a Firefox user myself but there are some very valid arguments against it on Android as well. Firefox on Android is significantly more vulnerable to exploits, lacks internal sandboxing and doesn’t properly isolate tabs from each other.

Barbing•1h ago

Best iOS strategy that comes to mind is Safari:

  -iCloud Private Relay (native VPN-like thing)  
  -uBlock Origin Lite
  -AdGuard DNS

(Using fresh private tabs for small privacy gain?) Better than third-party skinned browsers right? Always happy to be informed otherwise.

(AdGuard does have an option to supplant uBlock in this stack btw, does “advanced” blocking https://adguard.com/kb/adguard-for-ios/web-extension/ which is nice but trust $mm-refusing uBlock dev gorhill forever)

Anthony-G•7m ago

This sounds like good advice so upvoted. I’m a big fan of Raymond Hill¹’s products so I am curious about how much benefit Adguard provides if uBlock Origin is already blocking online trackers, ads and other annoyances.

¹ In this case, the developer – not the musician. I really liked the user interface of uMatrix.

avazhi•39m ago

Firefox and Brave are both profoundly bad on iOS. Scrolling is a nightmare.

jdmg94•37m ago

everything on iOS is just a safari skin

rafram•6m ago

That's not totally true. Orion supports Chrome/FF WebExtensions, for example. The engine does (practically, even in the EU) have to be WebKit, but that's not the same thing as a "Safari skin."

kuekacang•1h ago

Genuine question, does brave have ff's container extension? currently that's one of the thing that keeps holding me on ff. another big one is i test website on firefox so to not get carried away with features only available in chromium

Larrikin•54m ago

Why support Chrome at all?

Dwedit•41m ago

Some people don't like how Brave is pushing cryptocurrency.

avazhi•41m ago

Why would you use Brave when for many years it wouid surreptitiously install a VPN service on your Windows machine. The Brave devs took more than a year to even address it, let alone remove it.

More ideologically, Google and Chromium are awful for the internet as monopolistic tech.

ndisn•31m ago

What’s wrong with a VPN service as long as it doesn’t route your traffic or anything.

jrm4•7m ago

Their whole thing looks sketchy, frankly. I'm not saying they're evil or have some deep secret ulterior motive. But their "vision" appears to be bunch of absolutely half-baked ideas for privacy, for which Firefox has a much more boring, and consequently better, track record.

RandomGerm4n•1h ago

Can this extension effectively block ads on YouTube? When I manually enabled the Rust ad blocker in about:config and added filter lists there, ads still appeared on YouTube and some porn sites. While uBlock Origin blocks everything.

antonok•22m ago

It should be able to. Waterfox is using roughly the same integration and the maintainer has been seeing reports of YouTube issues, but cannot reproduce it. https://github.com/BrowserWorks/waterfox/issues/4182#issueco...