Kilotest: Violations of z-index not zero issue for Mozilla Foundation page

Here are the HTML elements reported to violate rules belonging to the z-index not zero issue.

Basics

About the z-index not zero issue

Why it matters: User cannot predict the effect of clicking

Priority: lowest

Related WCAG standard: 1.4

Violator count: 6

Reported by 1 tool (Testaro)

About the Mozilla Foundation page

URL: https://www.mozilla.org/en-US/

Tested by job 6v4 on 2026-04-03 at 03:56

Violators

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1. Element 129

   • Take me there
   • XPath: /html/body/aside[1]
   • Tag name: ASIDE
   • Text: Help us improve your Mozilla experience … Cookie settings
   • Reported by Testaro
   • What diagnoses were reported?

2. Element 138

   • XPath: /html/body/nav[1]
   • Tag name: NAV
   • Text: Products … About us
   • Reported by Testaro
   • What diagnoses were reported?

3. Element 148

   • XPath: /html/body/nav[1]/div[1]/div[1]/div[1]/div[1]/div[1]/ul[1]/li[1]
   • Tag name: LI
   • Text: Products
   • Reported by Testaro
   • What diagnoses were reported?

4. Element 150

   • Take me there
   • XPath: /html/body/nav[1]/div[1]/div[1]/div[1]/div[1]/div[1]/ul[1]/li[1]/div[1]
   • Tag name: DIV
   • Text: Close Products menu … All products
   • Reported by Testaro
   • What diagnoses were reported?

5. Element 204

   • Take me there
   • XPath: /html/body/nav[1]/div[1]/div[1]/div[1]/div[1]/div[1]/ul[1]/li[2]
   • Tag name: LI
   • Text: About us
   • Reported by Testaro
   • What diagnoses were reported?

6. Element 206

   • Take me there
   • XPath: /html/body/nav[1]/div[1]/div[1]/div[1]/div[1]/div[1]/ul[1]/li[2]/div[1]
   • Tag name: DIV
   • Text: Close About us menu … Mozilla New Products
   • Reported by Testaro
   • What diagnoses were reported?