Trying Chromium in macOS Mojave (10.14), I confronted with the popular issue regarding Google API key missing. After obtaining an API key along with client ID and secret, I put it on some shell startup scripts as following. export GOOGLE_API_KEY="your_google_api_key"export GOOGLE_DEFAULT_CLIENT_ID="your_client_id"export GOOGLE_DEFAULT_CLIENT_SECRET="your_client_secret" Even more careful, I also use launchctl setenv to ensure these variables are available for macOS GUI applications (usually la...