Firefox maker Mozilla appoints new CEO to navigate it through its AI era

The Mozilla Corporation, maker of the popular Firefox web browser, has announced the appointment of a new CEO

Anthony Enzor-DeMeo, general manager of Firefox, will become top boss at a time when Mozilla is trying to rebrand itself as “the world’s most trusted software company.”

Here’s why and what you need to know about Mozilla’s new CEO.

Who is Anthony Enzor-DeMeo?

As of today, Anthony Enzor-DeMeo is Mozilla Corporation’s new chief executive officer.

However, while his position may be new, his involvement with Mozilla is not. Enzor-DeMeo was previously the general manager of Firefox, which is Mozilla’s most well-known product.

Under Enzor-DeMeo’s management, the Firefox browser saw double-digit growth on mobile over the past two years, the company revealed in a press release.

It also added AI features, including “Shake to Summarize,” which lets an iPhone user simply shake their device to get Firefox to summarize a web page. More recently, under Enzor-DeMeo’s management, the browser also added “AI window,” an opt-in in-browser AI assistant.

Prior to joining Mozilla, Enzor-DeMeo was the chief product and technology officer at the fintech company Roofstock.

Enzor-DeMeo replaces Laura Chambers, who served as Mozilla’s interim CEO for the past two years. Chambers will stay on at Mozilla, returning to her role on the board of directors.

Announcing Enzor-DeMeo’s promotion to CEO, Mozilla president Mark Surman said, “Anthony understands that trust is more than a brand promise, it’s something you earn through how products are built, how data is handled, and how clearly users understand what’s happening. That’s the future we’re building toward.”

Trust in the AI era

Indeed, “trust” in a world of AI seems to be the main name of the game at Mozilla under Enzor-DeMeo’s leadership. 

“The browser is AI’s next battleground,” he said in a statement. “It’s where people live their online lives and where the next era’s questions of trust, data use, and transparency will be decided.”

He added that users “want software that feels modern and helpful, but also honest about what it does.”

In a blog post, Enzor-DeMeo said that under his leadership, Mozilla will work on “becoming the trusted software company” in an era where many are losing trust in Big Tech companies due to their opaque policies around AI.

Mozilla, Enzor-DeMeo says, will accomplish this by giving users agency in every product the company builds.

“Privacy, data use, and AI must be clear and understandable,” he said. “Controls must be simple. AI should always be a choice—something people can easily turn off.”

In addition to building trust, Enzor-DeMeo says another goal of Mozilla is to grow Firefox from a browser to “a broader ecosystem of trusted software.”

According to November 2025 data from Statcounter, Firefox is currently in fourth place in the global browser market share rankings.

Google’s Chrome leads the way with more than 71% market share, followed by Apple’s Safari at above 14%.

Microsoft Edge comes in third place at just below 5% market share, and Mozilla’s Firefox comes in fourth place with 2.3% global market share.