1. LightHouse
    1. to audit performance, accessibility, progressive web apps, and much more
      1. https://developers.google.com/web/tools/lighthouse
  2. Firebug
    1. to review HTML elements, DOM elements, and Box Model shading
      1. https://chrome.google.com/webstore/detail/firebug-lite-for-google-c/ehemiojjcpldeipjhjkepfdaohajpbdo?hl=en
  3. Wave
    1. to review web accessibility
      1. https://chrome.google.com/webstore/detail/wave-evaluation-tool/jbbplnpkjmmeebjpijfedlgcdilocofh?source=post_page-----14a710a097bb----------------------
  4. WebDeveloper
    1. to audit and validate CSS, Cookies, Images, Links and so on
      1. https://chrome.google.com/webstore/detail/web-developer/bfbameneiokkgbdmiekhjnmfkcnldhhm?hl=ru
  5. Bug magnet
    1. to add common problematic values and edge cases to the context menu for editable elements
      1. https://chrome.google.com/webstore/detail/bug-magnet/efhedldbjahpgjcneebmbolkalbhckfi?source=post_page-----14a710a097bb----------------------
  6. Check My Links
    1. to check that all the links on a page are valid and active
      1. https://chrome.google.com/webstore/detail/check-my-links/ojkcdipcgfaekbeaelaapakgnjflfglf?source=post_page-----14a710a097bb----------------------
  7. High Contrast
    1. to audit colors of elements
      1. https://chrome.google.com/webstore/detail/high-contrast/djcfdncoelnlbldjfhinnjlhdjlikmph
  8. Sources
    1. https://www.matuzo.at/blog/beyond-automatic-accessibility-testing-6-things-i-check-on-every-website-i-build/
    2. https://medium.com/ideas-by-crema/9-magical-chrome-extensions-for-qa-testing-14a710a097bb
    3. https://www.techbeamers.com/must-have-chrome-extensions-for-web-testing/
    4. https://www.testbytes.net/blog/27-useful-chrome-extensions-for-software-testers/
    5. https://quicksoftwaretesting.com/useful-google-chrome-extensions-testing-software/
    6. https://www.hostgator.com/blog/chrome-extensions-qa-testing-website/