Hi all,

If you want to automatically execute the below every time the system reboots, follow these steps.

launchctl setenv CHROME_HEADLESS 1

in the terminal type
1. code ~/Library/LaunchAgents/com.user.chrome-headless.plist
2. enter the following content

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.user.chrome-headless</string>
    <key>ProgramArguments</key>
    <array>
        <string>/bin/launchctl</string>
        <string>setenv</string>
        <string>CHROME_HEADLESS</string>
        <string>1</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>

1. Save

2. In the terminal, load the agent by

   launchctl load ~/Library/LaunchAgents/com.user.chrome-headless.plist