Side-by-side comparison · AI Browsers & Agents
Brave vs Firefox vs Comet
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Business owners who want an AI helper in the browser but don't want their browsing or chats stored or used for training.
Pick it if: Business owners who want a trusted, independent browser and want to decide for themselves whether AI is on or off.
Pick it if: Anyone who researches, compares or reads a lot online and wants an AI helper in the browser without paying for it.
Overview
| Attribute | Brave | Firefox | Comet |
|---|---|---|---|
| In one line | A privacy browser with Leo, a free AI assistant that doesn't keep your chats. | Mozilla's free browser with optional AI you can switch off with one setting. | Perplexity's free web browser with an assistant that reads your tabs and does tasks. |
| Pricing model | Freemium | Free | Freemium |
| Starting price | $14.99/mo | Free | $5/mo |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | No | No | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Brave | Firefox | Comet |
|---|---|---|---|
| Overall rating | 3.9 | 3.6 | 3.9 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.0 | 3.5 | 4.5 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 3.5 | 3.0 | 4.0 |
| Output qualityHow good the results are before you fix them. | 3.5 | 3.5 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 4.5 | 4.5 | 4.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 3.5 | 3.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Brave | Firefox | Comet |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | Yes | Yes | Yes |
| Desktop app | Yes | Yes | Yes |
| Browser extension | No | No | Yes |
| API access | No | No | No |
| Teams & business | |||
| Team workspace | No | No | Yes |
| Enterprise plan or SSO | No | Yes | Yes |
| Connects to other apps | No | Yes | Yes |
| Open source or self-hosted | No | No | No |
| AI abilities | |||
| Works with your files | Yes | No | Yes |
| Understands images | Yes | No | Yes |
| Makes images | No | No | No |
| Makes video | No | No | No |
| Writes code | No | No | No |
| Runs agents or automations | Yes | No | Yes |
| Learns your brand or style | No | No | No |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 7/ 17 | 6/ 17 | 11/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Brave | Firefox | Comet |
|---|---|---|---|
| Plans | FreeOur pick Free Everyday summaries and questions while you browse. | FirefoxOur pick Free Everyone, with AI on or off as you choose. | FreeOur pick Free Everyday browsing with an assistant for summaries and questions. |
Leo Premium $14.99/mo, or $149.99/yr Daily users who want better answers and fewer limits. | Smart Window beta Free Heavy researchers in the US, Canada or France. | Comet Plus $5/mo Readers who want partner publishers' paywalled articles. | |
Perplexity Pro $20/mo, or $200/yr Anyone who wants the agent to do tasks for them. | |||
Perplexity Max $200/mo, or $2,000/yr Heavy users running many tasks in the background. | |||
| Which plan to pick | Start free. If you hit the daily limits or the answers feel thin, Premium at $14.99 a month gets you Claude-level quality inside a private browser. If you already pay for ChatGPT or Claude, you may not need Premium at all, since those work in any browser. | There's nothing to pay. Use the sidebar with whatever AI account you already have. If you're in the US, Canada or France, try Smart Window with a free Mozilla account. Everyone else can join the waitlist. | Use it free: the sidebar assistant alone is worth having, and most people never need more. Pro makes sense if you want Perplexity's research tools anyway, but don't buy it just for the browser agent, since Pro's credits are a one-off bundle. Nobody needs Max just for the browser. |
Key features
| Attribute | Brave | Firefox | Comet |
|---|---|---|---|
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Pros and cons
| Attribute | Brave | Firefox | Comet |
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Who each one is for
| Attribute | Brave | Firefox | Comet |
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Questions people ask
Which is better, Brave, Firefox or Comet?
They tie on our overall rating (Brave 3.9/5, Firefox 3.6/5 and Comet 3.9/5). Brave is best for summarising pages, PDFs and Google Docs privately and quick answers with Brave Search sources. Firefox is best for Keeping AI out of the browser entirely and using your own ChatGPT or Claude in a sidebar. Comet is best for summarising long pages, PDFs and videos and comparing products or suppliers across tabs.
Which is cheaper, Brave, Firefox or Comet?
Brave: There's a free plan, and paid plans start at $14.99/mo. Firefox: It's free and open source. Comet: There's a free plan, and paid plans start at $5/mo.
Which is easier to use, Brave, Firefox or Comet?
Comet rates highest for ease of use in our scores. Anyone who researches, compares or reads a lot online and wants an AI helper in the browser without paying for it.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
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