Adblock-rust Manager – Firefox extension to enable the Brave ad blocker
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.
In plain words
Adblock-rust Manager is a Firefox extension that provides a user interface for the Brave ad-blocking engine built into Firefox 149. The extension lets users toggle ad blocking, manage filter lists, and choose from eight preset configurations, plus add custom lists. It includes clipboard helpers to simplify the underlying configuration process and uses Firefox's privacy API for instant activation. This tool is for Firefox users who want accessible control over the built-in Rust-based ad blocker without manual preference editing.
written from the facts on this page · September 2026
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