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You wrote a test script using Cypress but it fails to run on Firefox browser. What is the most likely reason?

medium📝 Debug Q14 of 15
Cypress - Basics and Setup
You wrote a test script using Cypress but it fails to run on Firefox browser. What is the most likely reason?
AYour Firefox browser version is outdated.
BYou need to install Playwright to run Cypress tests on Firefox.
CCypress requires Selenium to run on Firefox.
DCypress does not support Firefox well yet.
Step-by-Step Solution
Solution:

  1. Step 1: Understand Cypress browser support

    Cypress primarily supports Chromium browsers; Firefox support is experimental and limited.

  2. Step 2: Evaluate other options

    Cypress does not depend on Selenium or Playwright; outdated browser or installing Playwright is unrelated.

  3. Final Answer:

    Cypress does not support Firefox well yet. -> Option D

  4. Quick Check:

    Limited Firefox support = Cypress issue [OK]
Quick Trick: Cypress Firefox support is limited [OK]
Common Mistakes:
  • Thinking Cypress needs Selenium for Firefox
  • Blaming browser version without checking support
  • Assuming Playwright is needed for Cypress tests

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