Nanobrowser: AI Web Agent & Automation

Name: Nanobrowser: AI Web Agent & Automation
Author: Nanobrowser Firefox Edition

Open-source AI web automation tool for Firefox. A free alternative to OpenAI Operator with flexible LLM options and multi-agent system. 100% privacy-focused with local browser execution.

This add-on was removed from Firefox Add-ons Store on 2026-01-29

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Features & Capabilities

anobrowser Firefox Edition brings powerful AI web automation directly to your Firefox browser. A complete, free alternative to expensive AI automation tools like OpenAI Operator.

🔥 Why Choose Nanobrowser Firefox Edition?

✅ 100% Free - No subscription fees or hidden costs. Use your own API keys and pay only for what you use.

✅ Privacy-First - Everything runs locally in your Firefox browser. Your credentials stay with you, never shared with any cloud service.

✅ Multi-Agent System - Specialized AI agents (Navigator, Planner, Validator) collaborate to handle complex web tasks.

✅ Flexible LLM Support - Works with OpenAI, Anthropic, Gemini, Ollama, Groq, Cerebras, and custom OpenAI-compatible providers.

✅ Fully Open Source - Complete transparency. No black boxes or hidden processes.

🚀 Key Features

• Smart Web Automation: Let AI navigate websites, fill forms, extract data, and perform complex multi-step tasks • Interactive Chat Interface: Natural conversation with your AI assistants via the convenient popup interface • Task Planning: Advanced planning agent breaks down complex requests into actionable steps • Real-time Validation: Validator agent ensures tasks are completed correctly • Conversation History: Access and manage your AI interaction history • Cross-Site Workflows: Seamlessly automate tasks across multiple websites

🎯 Perfect For

Data extraction and web scraping
Automated form filling and submissions
Research and information gathering
E-commerce and shopping automation
Social media management
Testing and QA workflows
Any repetitive web-based tasks

User Growth & Download Statistics

Add-on

By:

Nanobrowser Firefox Edition

Daily users:

Version:

0.1.12 Last updated: 2025-09-21

Version code:

6036810

Creation date:

2025-09-18

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

*
<all_urls>

Size:

750.22KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-01-29

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Nanobrowser Firefox Edition

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/nanobrowser-ai/

Is Nanobrowser: AI Web Agent & Automation Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Nanobrowser: AI Web Agent & Automation requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Nanobrowser: AI Web Agent & Automation may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.