Agentic Browsers: Smart Help or Silent Risk?

🕓 Read time: ~4 min

AI isn’t just in your tools anymore, it’s slowly found its way into your browser.

Over the past few months, a new wave of agentic browsers has arrived, including Perplexity’s Comet, ChatGPT’s Atlas, Strawberry, and Fellou. They don’t just help you search. They can read, summarize, analyze, and even act on your behalf. Across multiple tabs and sites.  

It's exciting but also a shift worth understanding before we hand over the steering wheel.

First Things First: The Risks Beneath the Hype

Before adopting any agentic browser, it’s important to know how these browsers. And what you trade for their convenience, so you can make your own informed choice.

1. Data exposure
To act effectively and "think" for you, these browsers often need broad access to your browsing sessions or linked services. Even if you deny permissions, some behavioral data may still be collected.

2. Prompt injection 
Hidden instructions can hide in web pages and trick the AI into unintended actions. There’s no easy or perfect safeguard - awareness is your best defense. 

3. Overlap and tool fatigue
Every new “AI-enhanced” browser promises smarter automation and more time savings for you. But the real question is: which one truly fits your workflow? Otherwise, you end up paying for overlapping tools that quietly gather digital dust.

What I Found in Practice

Over the past couple of weeks, I have tested 4 agentic browsers, some more intsensively than others.

Here's my first-hand take:

• Comet: fast and source-based
  Perplexity's Comet feels research-first and action‑capable. It pulls live, sourced answers and can run several browser tasks in parallel, like monitoring pages or filling forms automatically. I love it for scheduled updates from my favorite AI and news sources. Downsides: a bit heavier on older laptops and the UI still has learning gaps.

• Atlas: automation-forward, with strong real-time actions
  Open AI's Atlas is action-first with a sleek, minimalist UI. It's Agent Mode can automate multi‑step tasks such as comparing prices, summarizing reviews, refining text directly in the browser with nice UI touches (instant search, floating panels). It's smoother on system resources but occasionally loops when juggling multiple tasks.

• Fellou: powerful deep search and visualization
  Fellou is a built for complex research and workflow tasks: compiling data, analyzing results, and generating structured reports with visualization, exportable charts and tables. They claim a local-first architecture (whatever that means in practice...more privacy, less cloud I guess). In reality, it still needs significant access to your system to function. The learning curve for Fellou also feels steeper.

• Strawberry: the most “human” AI browser so far
  Strawberry feels alive. Its “companions” interact with web pages like real people: clicking, filling forms, organizing data, or automating research and shopping tasks. So far, it’s the best AI browser I’ve tested for real-world, multi-step tasks. The only downside: credit usage isn’t transparent, yet, which makes it hard to plan for longer workflows. Still, it’s the one I pay for and actively use. 

Legal and Ethical Considerations

This commentary is for awareness, not legal advice.

Some uses of agentic browsers are already crossing lines. Giving AI tools your login credentials to access paywalled or private sites, like LinkedIn or subscription research databases, can violate terms of service or data-protection laws.

Some sites are already blocking automated agents to protect their content and users. The bottom line: automation doesn’t erase accountability. 

If You’re Curious to Try Them

If you’re experimenting with agentic browsers, here are a few things that made a difference for me:

1. Start small.
Try short tasks like summarizing a page, gathering insights, or tracking new articles before you let the browser do more.

2. Watch the permissions.
Many agentic browsers invite you to sync data or import saved credentials right away. I personally skipped that step. And I went into each browser's settings, to understand what is being tracked, what goes into memory and how that data is used. 

3. Keep an eye on sessions.
Agentic browsers remember context longer than you might think. Logging out or resetting occasionally keeps things tidy.

4. Question convenience.
If a feature promises to "automate everything", pause and ask what data it would need to touch. That's usually eye-opening.

5. Focus on one tool at a time.
Testing multiple AI browsers can be fun, but also time consuming with questionable value-add. Going deep with one shows its true strengths (and weaknesses).

Key Takeaway

Agentic browsers are powerful assistants, so long as you use them consciously and with intent.

Use them to work smarter, not less carefully.

What your agent does online still shapes your digital and ethical footprint. 

Til next time, stay intentional!
Elena

P.S. Have you tried one of these new browsers? Did it feel genuinely helpful, or just another shiny new thing?