Material 3
hamen/material-3-skill
Implement Google's Material Design 3 (Material You) UI system.
You MUST use this skill when working with HTML, JS, CSS and other front-end code.
Install Firefox Desktop Frontend
$ npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install BrowserWorks/waterfox-android firefox-desktop-frontend --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/BrowserWorks/waterfox-android.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/firefox-desktop-frontend .claude/skills/firefox-desktop-frontend && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "firefox-desktop-frontend" agent skill from https://github.com/BrowserWorks/waterfox-android/tree/main/.agents/skills/firefox-desktop-frontend into .claude/skills/firefox-desktop-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "firefox-desktop-frontend", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/BrowserWorks/waterfox-android/tree/main/.agents/skills/firefox-desktop-frontendType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install BrowserWorks/waterfox-android firefox-desktop-frontend --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BrowserWorks/waterfox-android.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/firefox-desktop-frontend .agents/skills/firefox-desktop-frontend && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "firefox-desktop-frontend" agent skill from https://github.com/BrowserWorks/waterfox-android/tree/main/.agents/skills/firefox-desktop-frontend into .agents/skills/firefox-desktop-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "firefox-desktop-frontend", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install BrowserWorks/waterfox-android firefox-desktop-frontend --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BrowserWorks/waterfox-android.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/firefox-desktop-frontend .cursor/skills/firefox-desktop-frontend && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "firefox-desktop-frontend" agent skill from https://github.com/BrowserWorks/waterfox-android/tree/main/.agents/skills/firefox-desktop-frontend into .cursor/skills/firefox-desktop-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "firefox-desktop-frontend", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/BrowserWorks/waterfox-android.git --path .agents/skills/firefox-desktop-frontend--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install BrowserWorks/waterfox-android firefox-desktop-frontend --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BrowserWorks/waterfox-android.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/firefox-desktop-frontend .gemini/skills/firefox-desktop-frontend && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "firefox-desktop-frontend" agent skill from https://github.com/BrowserWorks/waterfox-android/tree/main/.agents/skills/firefox-desktop-frontend into .gemini/skills/firefox-desktop-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "firefox-desktop-frontend", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install BrowserWorks/waterfox-android firefox-desktop-frontendInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/BrowserWorks/waterfox-android.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/firefox-desktop-frontend .github/skills/firefox-desktop-frontend && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "firefox-desktop-frontend" agent skill from https://github.com/BrowserWorks/waterfox-android/tree/main/.agents/skills/firefox-desktop-frontend into .github/skills/firefox-desktop-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "firefox-desktop-frontend", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install BrowserWorks/waterfox-android firefox-desktop-frontend --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BrowserWorks/waterfox-android.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/firefox-desktop-frontend .opencode/skills/firefox-desktop-frontend && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "firefox-desktop-frontend" agent skill from https://github.com/BrowserWorks/waterfox-android/tree/main/.agents/skills/firefox-desktop-frontend into .opencode/skills/firefox-desktop-frontend/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "firefox-desktop-frontend", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
firefox-desktop-frontend- GitHub stars
- 379
- Used in
- 2 other repos
- Token cost
- ~819 tokens
- SKILL.md length
- 455 words
- Files
- 1
- Skills in repo
- 10
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
You MUST use this skill when working with HTML, JS, CSS and other front-end code.
- Working with HTML
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- CSS and other front-end code
What it does
Firefox Desktop Frontend is an agent skill from BrowserWorks/waterfox-android. You MUST use this skill when working with HTML, JS, CSS and other front-end code.
Its SKILL.md is about 820 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Frontend & Design. It works with Android.
When your agent uses it
- Working with HTML
- CSS and other front-end code
Example prompts
- “/firefox-desktop-frontend”
What it can do on your machine
Read from SKILL.md and the folder at commit 500d48c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
firefoxux.github.io
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Firefox Desktop Frontend loads about 819 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 455 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 455 words (~819 tokens).
- name
- firefox-desktop-frontend
Files
Just SKILL.md in .agents/skills/firefox-desktop-frontend of BrowserWorks/waterfox-android.
Open the folder on GitHubat commit 500d48c
Used in 3 other repositories
We found 7 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in BrowserWorks/waterfox-android, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Firefox Desktop Frontend next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Firefox Desktop Frontend this skillBrowserWorks/waterfox-android | 379 | 2 repos | ~819 | Automated safety check: Pass | Custom licence | |
| Material 3hamen/material-3-skill | 1.5k | 2 repos | ~7.8k | Automated safety check: Pass | MIT | |
| Webhome Homepage Builderwebhtv/webhtv | 1.7k | — | ~3.8k | Automated safety check: Pass | GPL-3.0 | |
| AccessibilityGetStream/stream-chat-react-native | 1.2k | — | ~6.5k | Automated safety check: Pass | Custom licence | |
| Material Design 3 UI/UX Guideskydashnet/material-design-3-ui-skill | 135 | — | ~3k | Automated safety check: Pass | MIT | |
| Tv Remote UIventic/ventic | 174 | — | ~4.2k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Firefox Desktop Frontend
What does Firefox Desktop Frontend do?
You MUST use this skill when working with HTML, JS, CSS and other front-end code. Firefox Desktop Frontend is an agent skill from BrowserWorks/waterfox-android. You MUST use this skill when working with HTML, JS, CSS and other front-end code.
When should I use Firefox Desktop Frontend?
Firefox Desktop Frontend fits situations like: working with HTML; CSS and other front-end code.
How do I install Firefox Desktop Frontend in Claude Code?
Run `npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a claude-code`. Or copy the skill folder (.agents/skills/firefox-desktop-frontend in BrowserWorks/waterfox-android) into .claude/skills/firefox-desktop-frontend in your project. Claude Code loads it when a task matches its description.
How do I install Firefox Desktop Frontend in Codex?
Run `npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a codex`. Or copy the skill folder (.agents/skills/firefox-desktop-frontend in BrowserWorks/waterfox-android) into .agents/skills/firefox-desktop-frontend in your project. Codex loads it when a task matches its description.
Can I use Firefox Desktop Frontend in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add BrowserWorks/waterfox-android --skill firefox-desktop-frontend -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/firefox-desktop-frontend, .gemini/skills/firefox-desktop-frontend, .github/skills/firefox-desktop-frontend and .opencode/skills/firefox-desktop-frontend in your project.
What does Firefox Desktop Frontend need to run?
SKILL.md names no scripts, command-line tools or credentials: Firefox Desktop Frontend is instructions for the agent only.
Does Firefox Desktop Frontend access the network?
SKILL.md names 1 domain. As links in the text: firefoxux.github.io. This is read from the text; nothing was executed.
Is Firefox Desktop Frontend safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Firefox Desktop Frontend use?
Firefox Desktop Frontend has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Firefox Desktop Frontend use?
About 819 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Firefox Desktop Frontend?
Skills that share tags, products or a category with Firefox Desktop Frontend: Material 3 (hamen/material-3-skill, 1.5k stars), Webhome Homepage Builder (webhtv/webhtv, 1.7k stars), Accessibility (GetStream/stream-chat-react-native, 1.2k stars) and Material Design 3 UI/UX Guide (skydashnet/material-design-3-ui-skill, 135 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Firefox Desktop Frontend?
BrowserWorks (a GitHub organization) maintains it in BrowserWorks/waterfox-android, which has 379 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on September 22, 2026.
Source: BrowserWorks/waterfox-android on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.