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CometLens · browser extension · 0.6.0 candidate · 6 Oct 2026

See issues directly on the page you are analyzing.

Lens overlays Insight audit findings on elements of the page you have open — without switching tools.

Lens combines local page tools and an accessibility audit with Insight reports. Fetch a cloud report when you choose; a new Quick scan uses the credits shown before it starts.

Chrome and Firefox · local inspection · store listings are not public yet

localhost · staging · production
Example
LCP slow
Unused JS
Performance 4
LCP candidate issue
Unused JS warn
Render-blocking warn
Cached result HUD

Privacy and permissions

A small extension script supports the “Inspect element” context-menu action on pages. Analysis, reports and Insight uploads start only after you choose them.

Context-menu script

The manifest declares this script for all web pages, so the browser may show a broad site-access permission. The script supports “Inspect element”: only after a right-click does it compute a selector for the chosen element and pass it to the extension. It sends no page content and makes no network requests.

Analysis after your action

Local tools, the accessibility audit, inspector and overlay start only after you choose a feature. The extension does not start a cloud scan on its own.

API key in the extension

The key is saved in extension-local storage and authenticates requests to app.cometweb.io. The inspected page script does not receive it.

Data sent to Insight

When you fetch results, Lens sends your API key and the current page URL. Creating a task or muting a finding also sends the selected finding and text you enter. Form field values are not sent.

Two separate export choices

Browser measurements need separate, revocable consent. A local accessibility result stays in the browser until you select a project and confirm its export.

No browsing history

Lens does not read browsing history. The extension stores your API key locally and sends it only to app.cometweb.io with Insight requests.

Run Lens in 3 steps.

Get access to the extension

The current 0.6.0 candidate targets Chrome and Firefox, but neither store package has been submitted. Ask about test access; Insight features require an account and an API key from a plan that includes API access.

Open a local, staging, or production page

Works on localhost and on pages behind login in your browser session — you analyze what you see on the tab.

Choose how to work

Use local tools without an API key or fetch an Insight report. Check the displayed credit cost before starting a scan.

What the 0.6.0 candidate includes

This version combines local checks on the current page with Insight reports. Local and cloud results stay distinct; the extension is not a full audit or certification.

Performance

  • Signals and issues from the Performance module in the Insight result
  • Full lab Lighthouse stays in the app when Quick scan does not include it

Accessibility

  • Six local rules checked against the active tab
  • The result stays local until you choose a project and confirm export; it is not a WCAG conformance certificate

SEO

  • On-page signals and issues from the SEO module in the Insight result

Security

  • Public signals (headers, HTTPS, CSP) from the Security module

Ecology

  • Transfer and CO₂e estimates from the Eco module — same assumptions as Insight

On the page

  • Nine local tools for page inspection, including headings, links and JSON-LD
  • Inspector, element highlighting and reversible preview of sanitized CSS/HTML fixes
  • Export local reports as JSON, CSV or printable PDF

A different job for each role.

Designers

Check selected contrast issues on the live page

Toggle the overlay, see elements with detected accessibility issues, and send a screenshot with highlights.

contrastoverlayscreenshot
Browser support
This release targets Chrome and desktop Firefox. The candidate was tested in Chrome 154 and Firefox 140; store listings are not public. Edge was not tested separately, and Safari is not supported.

Neither package has been submitted to CWS or AMO. Until the listings are approved and public, the button lets you ask about test access; it does not promise that a test package is available.

Chrome
candidate · not published
Firefox
candidate · not published
Edge
not verified
Safari
not supported

Release status

  • Stable overlay, inspector, result HUD, Quick scan via API, CSS/HTML fix snippets.
  • Limits scope = Insight / Quick result — not a pentest or WCAG certification.
  • Publication Version 0.6.0 is a candidate for Chrome Web Store and AMO. Submission, signing, review and publication have not happened.
  • Feedback report a bug or ask about test access through the contact form.
  • Pricing Insight features require a plan with API access and an API key. Scans use credits; the cost is shown before the scan starts.
  • Data Insight reports live in your account; local checks stay in the browser. Settings and measurement consent are stored locally.

See issues without leaving the page.

Local page checks and Insight reports in your browser. Version 0.6.0 is waiting for store publication.

Insight plan with API access On-demand Chrome and Firefox desktop Clear permissions