# Firefox Extension Dev

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- **Type:** Skill
- **Install:** `agentstack add skill-acaprino-claude-code-daodan-firefox-extension-dev`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [acaprino](https://agentstack.voostack.com/s/acaprino)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [acaprino](https://github.com/acaprino)
- **Source:** https://github.com/acaprino/claude-code-daodan/tree/master/plugins/browser-extensions/skills/firefox-extension-dev

## Install

```sh
agentstack add skill-acaprino-claude-code-daodan-firefox-extension-dev
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Firefox Extension Development References

This skill provides reference files for the `firefox-extension-dev` agent. The agent handles all active development work (scaffolding, coding, debugging, publishing). These reference files serve as its knowledge base.

## Reference Files

- `references/browser-api-reference.md` - Complete list of all 51 browser.* APIs with methods, events, and permissions
- `references/manifest-schema.md` - Full manifest.json key reference with MV2/MV3 examples
- `references/amo-publishing.md` - AMO publishing checklist, review policies, CSP, security best practices, i18n
- `references/mdn-api-urls.md` - Direct MDN URL index for all browser.* APIs, manifest keys, and Extension Workshop resources
- `references/best-practices.md` - Best practices, pitfalls, and anti-patterns: JS patterns, Workers, sessions, startup, security, performance, cross-browser

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [acaprino](https://github.com/acaprino)
- **Source:** [acaprino/claude-code-daodan](https://github.com/acaprino/claude-code-daodan)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-acaprino-claude-code-daodan-firefox-extension-dev
- Seller: https://agentstack.voostack.com/s/acaprino
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.