Unable to log into admin using Google Chrome

Topic summary

Users are experiencing login issues with Shopify admin specifically when using Google Chrome, while other browsers (Safari, Firefox) and Chrome’s incognito mode work normally.

Primary troubleshooting steps suggested:

  • Clear browser cache, cookies, and DNS cache
  • Update macOS to latest version (older versions like El Capitan 10.11.06 are no longer supported)
  • Disable Chrome hardware acceleration
  • Reset Chrome settings
  • Flush DNS cache using command prompt

Root causes identified:

  • Let’s Encrypt root certificate expired September 30, 2021, requiring updated systems
  • Outdated macOS versions (below 10.12.1) are incompatible with new SSL certificates
  • Possible SSL certificate validation issues in Chrome
  • Some users resolved the issue by logging into their Google account first

Current status:
The issue remains unresolved for multiple users across different timeframes (October 2021 through October 2023). One user found success by enabling “Google Apps for login” in Shopify’s user permission settings. Most affected users continue working via alternative browsers or Chrome incognito mode as temporary workarounds while the underlying Chrome compatibility issue persists.

Summarized with AI on October 31. AI used: claude-sonnet-4-5-20250929.

My iMac says it’s up to date not sure why, is there another of updating it ?