Brendan Eich, the creator of JavaScript and former chief architect at Mozilla, outlined the vision behind Brave, a browser designed to block trackers and ads by default while giving users more control over their browsing data. Beyond privacy, Brave is also intended to address a long-standing problem on the web: how to fund publishers and creators in an era of widespread ad blocking.
A privacy-first alternative to ad tech
According to Eich, today’s ad ecosystem relies heavily on third-party trackers and intermediaries that collect audience data but often leave publishers with relatively weak revenue shares. Brave’s approach is to remove those middle layers and replace them with browser-local ad preference inference, meaning the relevant data stays on the user’s device. Anonymous protocols would then be used to confirm ad impressions and conversions.
Eich said the goal is to pay publishers better than they are paid under conventional programmatic advertising. Brave would also give users a share of revenue, with both the company and the user taking 15%, while enabling users to automatically direct micropayments to sites they value in exchange for a cleaner, less intrusive experience.
Why Bitcoin sits at the center
Eich argued that Bitcoin is the most practical tool for Brave’s payment model because it avoids adding another major barrier to adoption. In his view, Brave should focus on winning users with a faster and cleaner browser, rather than simultaneously requiring publishers and advertisers to migrate to a completely new financial system from day one.
Under the hood, Brave uses Bitcoin for permissionless payments and works with BitGo as its wallet and identity partner. Wallets are created within the Brave system and use a multisignature structure so users and publishers can ultimately receive and manage funds. For advertisers, the company’s near-term plan was not to require direct Bitcoin purchases. Instead, trial campaigns could be settled in fiat currency first, with proceeds later converted into Bitcoin for distribution to users and publishers.
Using Bitcoin for transfers, not full on-chain accounting
Eich also made clear that Brave was not trying to put every micropayment or ad-impression record directly on the blockchain. He described the blockchain as a low-bandwidth, increasingly expensive, and public accounting system that is not well suited to this kind of high-volume activity. Instead, Brave planned to combine Bitcoin’s low-friction transfer capabilities with open-source anonymization protocols and its own auditable accounting architecture.
While Eich said he had interest in projects such as Ethereum and liked approaches like Blockstack, he concluded that for the practical cryptocurrency properties Brave needed at the time, “Bitcoin is the only game in town.” He also said the company was not willing to wait for future technologies like the Lightning Network before launching its product.
Ad-blocking pressure creates room for experimentation
Eich said both major publishers and advertising agencies were increasingly concerned about the growth of ad blockers, which by some estimates had reached 40% of internet users. That pressure, he suggested, made both sides more open to testing a model that tries to align user privacy, publisher economics, and advertiser performance.
At the time of the interview, Brave already had users on its 0.7 Developer Channel release and was working toward 0.8, 0.9, and eventually 1.0, with mobile app store launches expected before the full milestone. Taken together, Brave’s strategy was to use browser-level privacy protections and Bitcoin-powered payouts to create a new balance between users, advertisers, and publishers.