a11y.css accessibility checker

a11y.css provides warnings about possible risks and mistakes that exist in HTML code through a style sheet. This extension also provides several accessibility-related utilities. see https://github.com/ffoodd/a11y.css/tree/webextension for details

a11y.css accessibility checker - Firefox Add-on

a11y.css accessibility checker is a Firefox add-on that alerts developers about HTML code risks and mistakes, evaluates site quality, and offers accessibility utilities.
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View on Firefox Browser Add-ons

Add-on stats

Users: 235
-9
Rating: 5.00
(1)
Version: 2.1.0 (Last updated: 2024-12-10)
Creation date: 2018-01-18
Weekly download count: 4
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood:
Moderate risk likelihood
Manifest version: 3
Permissions:
  • activeTab
  • storage
  • scripting
  • tabs
Size: 694.89K
URLs: Website

Ranking

# 6,766 ▼ 90
Other rankings
#81 in free access keyword 71 ▼ 3

Other platforms

a11y.css (v2.1.0)
3.75 (4) 2,000
Not available on Android
Not available on Edge
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Add-on summary

Analyze keywords

First a11y.css was a bookmarklet inserting a style shet into the page.

This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external stylesheet.
This extension does the same, plus adds some tools:
  • Outline focus (keyboard navigation)
  • Show languages used (relies on lang attributes)
  • Check alt and title attributes on images
You can submit your bugs on github.

Original bookmarklet code: Gaël Poupard Extension code: Stéphane Deschamps Thanks to Anthony Ricaud and Mathieu Pillard for their help!

User reviews

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by GanJingWorld, 2022-12-22
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Add-on safety

Risk impact

a11y.css accessibility checker requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

a11y.css accessibility checker is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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