CLAUDEZILLA by Boot Industries
Browser automation for Claude Code — control Firefox from the terminal. No Chrome, no telemetry, no data collection.
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Extension Metadata
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About this extension
Claudezilla brings Firefox browser automation to Claude Code CLI — Anthropic's AI coding assistant for the terminal.
Control Firefox directly from your terminal: navigate pages, click elements, fill forms,
capture screenshots, and analyze page content. A Google-free alternative to Chrome-based browser automation.
FEATURES:
- Page navigation and full DOM interaction (click, type, scroll, press keys)
- Screenshot capture with dynamic readiness detection and image compression
- Annotated screenshots with numbered element badges for precise interaction
- Structured page analysis via JSON (faster and cheaper than screenshots)
- Accessibility tree snapshots for semantic page understanding
- Page state diffing to detect changes between interactions
- Cookie/consent dialog auto-dismissal (GDPR overlays, CMP platforms)
- Lazy tool loading — only ~50 tokens at session start, load tools on demand
- Domain allowlists for agent sandboxing
- Flexible element waiting (CSS selector, text content, or URL pattern)
- Network request and console log monitoring
- Multi-agent safety with tab ownership, screenshot mutex, and slot reservations
- Expression validation that blocks dangerous JS patterns (eval, fetch, cookies)
- Focus loops for persistent iterative development across sessions
- Orphaned tab cleanup for crashed or disconnected agents
- Per-operation timeouts (5s–300s, default 150s)
REQUIREMENTS:
- Claude Code CLI installed
- Native messaging host (one-command install script)
- Firefox 91+
- macOS, Linux, or Windows 10/11
PRIVACY:
- All communication is local via Unix socket (no network exposure)
- No data collected or transmitted to external servers
- Page content accessed only on explicit tool invocation
- Console and network capture are opt-in
- Request bodies are never captured
- Open source (MIT license)
Setup & docs: claudezilla.com
Control Firefox directly from your terminal: navigate pages, click elements, fill forms,
capture screenshots, and analyze page content. A Google-free alternative to Chrome-based browser automation.
FEATURES:
- Page navigation and full DOM interaction (click, type, scroll, press keys)
- Screenshot capture with dynamic readiness detection and image compression
- Annotated screenshots with numbered element badges for precise interaction
- Structured page analysis via JSON (faster and cheaper than screenshots)
- Accessibility tree snapshots for semantic page understanding
- Page state diffing to detect changes between interactions
- Cookie/consent dialog auto-dismissal (GDPR overlays, CMP platforms)
- Lazy tool loading — only ~50 tokens at session start, load tools on demand
- Domain allowlists for agent sandboxing
- Flexible element waiting (CSS selector, text content, or URL pattern)
- Network request and console log monitoring
- Multi-agent safety with tab ownership, screenshot mutex, and slot reservations
- Expression validation that blocks dangerous JS patterns (eval, fetch, cookies)
- Focus loops for persistent iterative development across sessions
- Orphaned tab cleanup for crashed or disconnected agents
- Per-operation timeouts (5s–300s, default 150s)
REQUIREMENTS:
- Claude Code CLI installed
- Native messaging host (one-command install script)
- Firefox 91+
- macOS, Linux, or Windows 10/11
PRIVACY:
- All communication is local via Unix socket (no network exposure)
- No data collected or transmitted to external servers
- Page content accessed only on explicit tool invocation
- Console and network capture are opt-in
- Request bodies are never captured
- Open source (MIT license)
Setup & docs: claudezilla.com
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Exchange messages with programs other than Firefox
- Access browser tabs
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 0.6.2
- Size
- 311.41 KB
- Last updated
- 2 days ago (Mar 24, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection
Installation docs: https://claudezilla.com/extension.html
Permission justifications:
• nativeMessaging: Core functionality
• tabs/activeTab: Tab management
• <all_urls>: Content script for DOM interaction
• webRequest/webRequestBlocking: Page readiness detection
• storage: User preferences
No external data collection. All communication local via Unix socket.