Kilotest: Diagnoses of role redundant violation by HTML element 51 on Mozilla Foundation join us page

Basics

About the page

• URL: https://www.mozillafoundation.org/en/join-us/
• Tested 3 days ago on 2026-10-07 at 21:54 by job 261007T2132-l0b
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 1762
  • Violators: 211
  • Issues: 46
• Download the full technical report (JSON)

About the issue

• Why it matters: Page includes unnecessary code
• Priority: lowest
• Related WCAG standard: 4.1.2
• Reported by 2 rule engines (Accessibility Checker + Pour)
• Violations: 2
• Violators: 1

About the violator

• Tag name: NAV
• Text: Meet Mozilla … Donate
• Start tag: <nav role="navigation" class="primary-nav-ns">
• XPath: /html/body/nav[1]
• Bounding box: x = 0, y = 0, width = 1920, height = 88
• Reported by Accessibility Checker + Pour

Diagnoses

Here is how rule engines diagnose the role redundant issue for HTML element 51 of the Mozilla Foundation join us page.

1. The explicitly-assigned ARIA role "navigation" is redundant with the implicit role of the element <nav>

   Rule engine: Accessibility Checker (IBM)

   Rule: aria_role_redundant

2. role attributes should not repeat the element’s built-in role

   Rule engine: Pour (David Yarham and Geoffrey Crofte)

   Rule: redundant-role