Firefox browser has started shipping Brave's adblock-rust engine (lemmy.ml)

submitted 2 days ago* (last edited 2 days ago) by XLE@piefed.social to c/firefox@lemmy.ml

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Full article: Firefox browser has started shipping Brave's adblock-rust engine

After seeing a lot of backlash over Waterfox adding Brave's adblock engine:

It looks like Waterfox is piggy-backing off of Firefox’s implementation (great!).

And it's been there for a little while.

Mozilla bundled adblock-rust (Brave’s Rust-based adblock engine, the same one my team works on) into Firefox. Pretty exciting to see them finally start taking ad & tracker blocking seriously; I didn’t think I’d see this day. It landed in Firefox 149 via via Bugzilla Bug 2013888.

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[-] eleijeep@piefed.social 6 points 1 day ago

Probably for the same reason that Waterfox developers gave: Because uBO is GPL licensed and combining with an MPL licensed codebase makes things complicated for downstream developers who cannot GPL license their codebase.

The Brave module is MPL licensed already.

Sure, I would prefer that everything is GPL, but it's not my project.

this post was submitted on 22 Apr 2026

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