codeatcode/oss-ai-skills · extend/firefox-extension/SKILL.md

firefox-extension skillA

firefox-extension is agent-read markdown (skill) from codeatcode/oss-ai-skills: Comprehensive guide for developing WebExtensions (browser extensions) for Mozilla Firefox, including Manifest V2/V3 configuration, all WebExtension APIs, security practices, web-ext CLI, and AMO submission..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add codeatcode/oss-ai-skills/firefox-extension@v1.0.0
Exact content
mdr add codeatcode/oss-ai-skills/firefox-extension@sha256:00de92972db00417

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_voeivsbngylqkais.svg)](https://markdownregistry.com/a/art_voeivsbngylqkais)

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Versions

versioncommittedcommitsizeaudit
v1.0.0 latest2026-04-20 e5744c4 20,740 BA view · diff
v1.0.02026-03-09 46f73cd 20,748 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (20740 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

codeatcode/oss-ai-skills · 16 stars · license GPL-3.0 · pushed 2026-09-10 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_voeivsbngylqkais
GET https://markdownregistry.com/api/v1/resolve?ref=codeatcode/oss-ai-skills/firefox-extension
GET https://markdownregistry.com/api/v1/blob/00de92972db00417d46527f0b2f30af8e934b47a57e785148e9bef8c3db49802

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.