python-adblock VS adblock-rust

Since version 2.0.0, if the Python adblock library is available, it will be used to integrate Brave’s Rust adblocker library for improved adblocking, based on ABP-like filter lists (such as EasyList)

Ah, yup, I can reproduce with that, thanks! I opened an issue here: Loading adblock cache takes 2-4s with huge cache file · Issue #62 · ArniDagur/python-adblock

From adblock on PyPI (the Python package index):

FYI Qutebrowser is has a pretty good ad-blocker since 2.0

> Since version 2.0.0, if the Python adblock library is available, it will be used to integrate Brave’s Rust adblocker library for improved adblocking, based on ABP-like filter lists (such as EasyList). If that library is unavailable or on older versions of qutebrowser, a simpler built-in ad blocker is used instead. It takes /etc/hosts-like lists and thus is only able to block entire hosts.

You just need optional dependancy https://pypi.org/project/adblock/

How would I make adblock "available" on Windows? I found the python scripts here, but I have no clue where qutebrowser would be looking for these?

There are various solutions to this - see point 21 in the FAQ

Purely a maintenance thing - faster windows releases and not having to take care of 32-bit support for the adblock library.

You will need the (optional) adblock Python library. Once you have that installed, with the default content.blocking.method = auto setting, it'll be enabled automatically. You can also set the setting to adblock explicitly, then you'll get a warning if the library wasn't found.

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!