firefox-css-theme

MCPattested
v0.2.8Eason WongMITUpdated 1d agonpmGitHub

Scaffolds, live-debugs, and installs Firefox CSS themes.

Works in
ClaudeCursorCopilotGemini

Inferred from the transports this listing declares (stdio). A client not listed here hasn’t been ruled out — it just isn’t something Forge can confirm.

Attested build
A verified provenance attestation binds this artifact to the listed repository. Nobody has claimed the listing yet — this proves where the code was built, not who stands behind it.
3GitHub stars
1d agoLast update
Package
AuthorEason Wong
LicenseMIT
Version0.2.8
Sourcenpm+mcp-registry
npmfirefox-css-theme
GitHubeasonwong-de/Firefox-CSS-Theme
SBOMCycloneDX 1.6 ↓
Trust Status
A
85/100Trusted
✓Listed in Forge index+10/10
✓Identity verified · attested build+20/20
—Ed25519 publish signature+0/5
→ Included automatically when the publisher runs `forge publish`
—Domain verification+0/5
→ Publisher: host /.well-known/forge.json on the package homepage with { "publisher": "<github-login>" }
✓npm Trusted Publishing (Sigstore)+5/5
—npm maintainer match+0/5
→ Publisher: add the verified GitHub login to the npm package's maintainers (npm owner add <login>)
✓CVE scan · clean+30/30
✓Static analysis · clean+20/20
Paste into Claude Code, Cursor, or any AI assistant to fix all gaps
StatusIdentity verified
PublisherUnverified
SignatureUnsigned
Domain—
Provenance✓ Sigstore-verified · 1f98307
Dependencies✓ 60 resolved+ · none vulnerable
Tool surface11 tools · 1 privileged
Security scan✓ Cleanv0.2.8 · todayHow well does this scan work?
EvalsNone
IndexedSep 2, 2026

Verification confirms publisher identity (repo ownership), not code safety. The security scan covers known CVEs and suspicious install scripts.

Tools

11 tools · 1 privileged
Statically extracted from the published packagev0.2.8 · 11h ago

Read out of the source npm actually ships, at scan time. The package was never executed. Tools registered dynamically at runtime, or hidden inside bundled or minified code, can be missed — so this is a floor on the tool surface, not a complete census of it.

launch_browserLaunch a Firefox instance with chrome debugging capabilities enabled.

Launch a Firefox instance with chrome debugging capabilities enabled.

No input schema was published for this tool.

close_browserClose the running Firefox instance.

Close the running Firefox instance.

No input schema was published for this tool.

customize_toolbarActivate or manage the Firefox Customise Toolbar mode in the browser chrome.

Activate or manage the Firefox Customise Toolbar mode in the browser chrome.

No input schema was published for this tool.

get_ui_treeRetrieve the hierarchical DOM tree of the Firefox chrome user interface window.

Retrieve the hierarchical DOM tree of the Firefox chrome user interface window.

No input schema was published for this tool.

query_ui_elementsFind elements in the Firefox UI chrome document matching a CSS selector.

Find elements in the Firefox UI chrome document matching a CSS selector.

No input schema was published for this tool.

get_computed_stylesExtract computed CSS properties for a Firefox UI chrome element.

Extract computed CSS properties for a Firefox UI chrome element.

No input schema was published for this tool.

inject_theme_cssInject or replace a live stylesheet in the Firefox window.

Inject or replace a live stylesheet in the Firefox window.

No input schema was published for this tool.

remove_theme_cssprivilegedRemove an injected stylesheet from the Firefox window.

Remove an injected stylesheet from the Firefox window.

No input schema was published for this tool.

list_theme_cssList all custom stylesheets currently injected in the Firefox window.

List all custom stylesheets currently injected in the Firefox window.

No input schema was published for this tool.

take_ui_screenshotCapture a PNG screenshot of the Firefox browser chrome window or a specific UI component.

Capture a PNG screenshot of the Firefox browser chrome window or a specific UI component.

No input schema was published for this tool.

execute_chrome_javascriptExecute privileged JavaScript code in the Firefox chrome window context.

Execute privileged JavaScript code in the Firefox chrome window context.

No input schema was published for this tool.

11 of 11 tools published a description.

Tool names and descriptions are written by the publisher and shown verbatim as inert text. They are the strings an MCP client passes to a model, so Forge scans them for prompt-injection patterns — any finding appears with the security scan above. “Privileged” is a keyword match on the tool name, not an audit of what the tool does: a benign-sounding name can still do anything.

About

Scaffolds, live-debugs, and installs Firefox CSS themes.

Keywords
mcp
Alternatives
Comparing tool surfaces…

Tools exposed

11 tools · 1 privileged · observed by static extraction. A tool surface is what one scan read on one day, not a live capability list.

Linked names open Forge’s index of every entry observed exposing that tool. Browse all indexed tools.

Dependency tree

What one Forge scan resolved from npm metadata on 2026-09-06 — observed resolution, not a publisher declaration.

60 packages resolved · 8 direct · none carrying advisories Resolution stops at depth 4 and 60 packages.

The crawl stopped at the 60-package limit. The rest of the tree was never resolved.

36 more resolved packages are not drawn here (display cap: 24). Every dependency carrying an advisory is drawn regardless of the cap. Full inventory (CycloneDX SBOM)

Declared but not resolved

56 declared dependencies never landed in the tree. They are missing from Forge's resolution, not from the package.

+44 more not listed. The counts by reason above cover all of them.

Not followed: peerDependencies. This tree covers runtime dependencies only, so anything those pull in was never resolved.