Preliminary Fixes

• Make Google Chrome open at startup: Open System Preferences > select Users & Groups > slide to Login Items > select icon > select Google Chrome > hit the Add button.
• Update or reinstall Google Chrome: Google frequently releases updates to add new features and bug fixes to Google Chrome. To do so, click on the three-dot icon > click Settings > navigate to About Chrome.

Fix 1: Free RAM and Try Again

macOS comes with a memory swap function to utilize SSD storage as RAM. But even a memory swap might not be sufficient to free up RAM on Mac.

Step 1: Open Activity Monitor using Spotlight Search on your Mac.

Step 2: Click on the Memory tab.

Step 3: Select apps you no longer need and hit the X mark to free up RAM.

After you have sufficient RAM on your Mac, open Google Chrome and enjoy an ideal web-browsing experience.

Fix 2: Clear Google Chrome Data

Step 1: Open Finder > select Go in the menu bar.

Step 2: Select Library.

Step 3: Double-click on Application Support to open it.

Step 4: Select the Google folder.

Step 5: Delete the Chrome folder by right-clicking on it and choosing Move to Trash.

Step 6: Select the Apple icon in the menu bar > reboot the Mac.

There you go. You should be able to open Google Chrome on Mac without any issues. If Chrome is still not opening on Mac, switch to Microsoft Edge, Opera, or Brave to enjoy your existing extensions (as they are all based on Chromium).