adblock-rust VS user.js

Brave has written their own (open source) adblock engine (in rust) that is directly integrated into the browser (ie. not an extension, so is not affected by Manifest V3).

https://github.com/brave/adblock-rust

Here is a (somewhat dated) article describing it by the authors:

https://brave.com/improved-ad-blocker-performance/

Brave has its own Rust implementation of an adblocker embedded in the browser: https://github.com/brave/adblock-rust; so it does not embed uBlock Origin (but the filters are mostly compatible)

Disclaimer: I work at Brave but not on the browser.

We support :has currently, which impacts many filters in EL and uBO. Some non-supported filters such as upward() can be manually converted over to use :has instead. The other unsupported procedual filters are a WIP will depend how easy/hard they are implement. No ETA, but have opened a ticket https://github.com/brave/adblock-rust/issues/293

ublock on chromium and brave itself can't use all of the filters in that list: https://github.com/brave/adblock-rust/issues/4

It's open source https://github.com/brave/adblock-rust

I've fixed this in the adblock engine as of https://github.com/brave/adblock-rust/commit/8a755bdb190bb55a3a3acee1e6507085051bdeec, and I'll push to get this patched in 1.47 soon. Thanks for the reports!

Re: firefox and privacy, if you want to use firefox for privacy, consider using https://github.com/arkenfox/user.js . There is a case to be made that Firefox (with arkenfox's user.js) is one of the best privacy-respecting but still fairly usable browsers.

For extensions, I recommend people follow the recommendations[1] in the arkenfox repo and either harden their firefox or use librewolf. Umatrix is unmaintained since 2019.

[1] https://github.com/arkenfox/user.js/wiki/4.1-Extensions

For macOS : Thunderbird and you can harden it even more with this : https://github.com/arkenfox/user.js

only arkenfox

This article is shit. https://github.com/arkenfox/user.js/ is what you want.

If you make time to dig through settings and change them away from their official use (99% of users don't), then you should use a customized setup (in this case, a user.js). That way, you're good to go no matter what Firefox fork you use.

> Firefox remains a stable option to come back to everytime

Don't get me wrong, I've been using Firefox for the last decade and I don't intend on using anything else for the foreseeable future, but Mozilla has no idea what they're doing with Firefox nowadays. Firefox View is the most useless thing I've ever seen, that expiring "independent voices" theme picker was some weird hippie stunt[1], the latest UI redesign which split the tab from the window looks hideous, and it's not like Firefox doesn't have things you can tweak for a more private experience[2]. I miss Firefox Test Pilot where they tried out different new features, I found a lot of them to be very useful but sadly lots of them didn't make it.

[1] https://blog.mozilla.org/en/products/firefox/firefox-news/in...

[2] https://github.com/arkenfox/user.js/

Like others have said you can customize the browser to the point that it doesn't even look like the default anymore. Or customize it to maximize privacy.