Efficient at Embedded AI, User Experience, Tab Management, Performance Efficiency, and Data Protection
Comet Browser gives you a free agent mode that can interact with your tabs, emails, calendar, and even browse the web for you, while Zen Browser just copies Arc's sidebar and runs into bugs and extension issues because it's built on Firefox.
Only use Zen Browser if avoiding Google and Chromium matters more than having agent features or reliable site support, otherwise, stick with Comet Browser.
Best for free agentic mode
Best for free agentic modeComet Browser stands out because it brings real agentic browsing to the table, letting you talk to the assistant, have it interact with your tabs, emails, and calendar, and even take over web navigation like a human assistant. This isn't just surface-level AI search; it's the only browser here that actually does things for you, and you get all this for free.
Zen Browser is basically a Firefox-based Arc clone for people who want to avoid Google and Chromium, but you lose a ton of extension support and end up with more buggy website experiences. Unless you're a diehard Firefox fan who cares more about escaping Chromium than getting practical new features, there's no real advantage here.
If you care about having a browser that actually works for you and can handle deep research, shopping, or just making your life easier with AI, Comet is the obvious choice. Zen only makes sense if you're specifically loyal to Firefox and willing to accept missing extensions and a rougher experience. For everyone else, Comet is miles ahead.
Comet Browser
Examples of what Perplexity Assistant can do
