Shumway SEO Toolkit

Firefox v0.1.9

Shumway SEO Toolkit for Firefox

Best for Firefox users who want the shared local SEO audit workspace without Chrome-only permissions.

Install from Firefox Add-ons Read Firefox docs View changelog

Install Status

Firefox Add-ons

Published Firefox Add-ons listing

Current Version

0.1.9

Firefox Highlights

Supported

Firefox-compatible background behavior for Add-ons review.

Supported

Local Blob download path for text exports, robots reports, page-copy documents, HTTP trace files, and image ZIP downloads.

Supported

Context-menu support where Firefox exposes the relevant context.

Supported

Same rendered accessibility tree, accessible palette, SERP preview, schema, robots, and export UI as the shared build.

Shared v0.1.9 Features

  • Local active-tab SEO auditing with no account, analytics, tracking pixels, remote logging, or background crawling.
  • Web Vitals workspace with local Core Web Vitals, CrUX current field data, CrUX history, PageSpeed Insights lab data, refresh controls, and exports.
  • Full in-page SEO workspace for Overview, Headings, Links, Images, Schema, Robots, Social, Style, SERP, Webmaster Tools, Tools, Exports, About, and Support.
  • HTTP Trace workspace for status codes, response headers, server redirects, final responses, JavaScript redirects, and meta-refresh redirects.
  • On-demand link checking for up to 250 URLs per batch with exact status codes, redirect destinations, inline badges, filters, retries, persistent sessions, and exports.
  • Rendered page inspection for titles, descriptions, canonicals, headings, links, images, structured data, social metadata, styles, accessibility signals, and source-vs-rendered differences.
  • Robots.txt review with grouped multi-crawler testing for core crawlers, detected site-specific crawlers, AI search bots, AI training crawlers, AI user-retrieval bots, and other known crawlers.
  • Editable desktop and mobile SERP previews with rich-result-style modules and PNG/WebP preview downloads where downloads are supported.
  • Rendered accessibility tree review with landmarks, headings, controls, images, issue chips, multi-select filters, sortable rows, locator copy, JSON export, and expandable previews after the first 100 semantic nodes.
  • Documented export and extraction limits: Markdown table truncation, TXT formatting, style sampling, robots.txt/source fetch caps, image ZIP caps, and skipped cross-origin stylesheet behavior.
  • Colorblind-friendlier accessible color palette for users who do not want severity communicated by red and green alone.
  • CSV, TSV, JSON, Markdown, spreadsheet, image, schema, robots, HTTP trace, page-copy, SERP image, Web Vitals, and accessibility-tree exports where supported by the browser.

Browser-Specific Limits

  • Toggle JavaScript is not available because Firefox does not expose Chromium contentSettings.javascript.
  • Firefox must be built from the Firefox target; do not reuse the Chrome ZIP for AMO.
  • Some context-menu placements depend on Firefox's supported extension contexts.

Install Flow

  1. Open the Firefox Add-ons listing.
  2. Install Shumway SEO Toolkit.
  3. Open any page and click the Shumway SEO Toolkit action to audit the active tab.
  4. Use Settings to enable the accessible color palette if you prefer colorblind-friendlier severity states.

More For Firefox

Firefox docs Firefox changelog Firefox support Privacy policy