Side-by-side comparison · AI Browsers & Agents
Firefox vs Manus vs Microsoft Edge
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 a trusted, independent browser and want to decide for themselves whether AI is on or off.
Pick it if: People who want to hand off whole tasks and don't want to build the automation themselves.
Pick it if: Windows and Microsoft 365 users who want AI help with reading, comparing and researching in the browser they already have.
Microsoft Edge scores highest overall, but Firefox gives you more for your money. Which one is right comes down to what you value most.
Overview
| Attribute | Firefox | Manus | Microsoft Edge |
|---|---|---|---|
| In one line | Mozilla's free browser with optional AI you can switch off with one setting. | A general-purpose agent that takes a goal and works through it in its own browser. | Microsoft's free browser with Copilot built in to read pages, compare tabs and do tasks. |
| Pricing model | Free | Freemium | Freemium |
| Starting price | Free | From $20/mo | $19.99/mo |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | No | Yes | No |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Firefox | Manus | Microsoft Edge |
|---|---|---|---|
| Overall rating | 3.6 | 3.7 | 3.9Winner |
| Ease of useHow quickly someone non-technical gets value from it. | 3.5 | 4.5 | 4.5 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 3.0 | 4.0 | 3.5 |
| 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 | 3.0 | 4.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 3.5 | 3.5 | 4.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Firefox | Manus | Microsoft Edge |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | Yes | Yes | Yes |
| Desktop app | Yes | Yes | Yes |
| Browser extension | No | Yes | Yes |
| API access | No | Yes | No |
| Teams & business | |||
| Team workspace | No | Yes | Yes |
| Enterprise plan or SSO | Yes | Yes | Yes |
| Connects to other apps | Yes | Yes | Yes |
| Open source or self-hosted | No | No | No |
| AI abilities | |||
| Works with your files | No | Yes | Yes |
| Understands images | No | Yes | Yes |
| Makes images | No | Yes | Yes |
| Makes video | No | Yes | No |
| Writes code | No | Yes | No |
| Runs agents or automations | No | Yes | Yes |
| Learns your brand or style | No | No | No |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 6/ 17 | 15/ 17 | 12/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Firefox | Manus | Microsoft Edge |
|---|---|---|---|
| Plans | FirefoxOur pick Free Everyone, with AI on or off as you choose. | Free Free Quick questions and seeing what it can do. | FreeOur pick Free Most people: summaries, tab comparisons and Journeys. |
Smart Window beta Free Heavy researchers in the US, Canada or France. | ProOur pick From $20/mo, less with yearly billing Anyone who wants to hand off real research and build jobs. | Microsoft 365 Premium $19.99/mo, or $199.99/yr US households and sole traders who want the agent and Office apps in one bill. | |
Pro (higher tier) From $40/mo, less with yearly billing Heavier users and anyone publishing websites with it. | Microsoft 365 Copilot (business) See website Companies on Microsoft 365 business plans. | ||
Team From $20/seat/mo Teams that want shared credits and admin controls. | |||
Enterprise Custom Large organisations. | |||
| Which plan to pick | 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. | Try the Free plan for a week to get a feel for how many credits a real task uses, then move to the $20 Pro tier. Only go higher if you run out most months or you want it to publish websites for you. | Stay on free. The side panel, tab comparisons and Journeys cover what most business owners need, and they cost nothing. Microsoft 365 Premium is only worth it if you're in the US and already want Office for the household; don't buy it just for the browser agent, which Microsoft still calls experimental. |
Key features
| Attribute | Firefox | Manus | Microsoft Edge |
|---|---|---|---|
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Pros and cons
| Attribute | Firefox | Manus | Microsoft Edge |
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Who each one is for
| Attribute | Firefox | Manus | Microsoft Edge |
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Questions people ask
Which is better, Firefox, Manus or Microsoft Edge?
Microsoft Edge scores highest overall in our ratings (Firefox 3.6/5, Manus 3.7/5 and Microsoft Edge 3.9/5). Firefox is best for Keeping AI out of the browser entirely and using your own ChatGPT or Claude in a sidebar. Manus is best for multi-step research with a report at the end and lead lists and data gathering. Microsoft Edge is best for summarising long pages and PDFs and comparing products or quotes across open tabs.
Which is cheaper, Firefox, Manus or Microsoft Edge?
Firefox: It's free and open source. Manus: There's a free plan, and paid plans start at From $20/mo. Microsoft Edge: There's a free plan, and paid plans start at $19.99/mo.
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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