Linux
Copy the certificate to the system CA directory using your package manager or manual installation commands.
macOS
Open the certificate file to add it to your system keychain, or use Keychain Access to import it manually.
Windows
Right-click the certificate file and select "Install Certificate" to add it to your certificate store.
Android
Go to Settings > Security > Install from storage and select the certificate file to add it as a trusted CA certificate.
iOS
Download the certificate and go to Settings > General > VPN & Device Management to install it, then enable full trust in Certificate Trust Settings.
Google Chrome
Open Chrome Settings > Security > Manage certificates, import the file under Authorities tab, and enable trust for websites.
Mozilla Firefox
Go to Preferences > Privacy & Security > Certificates > View Certificates, select Authorities tab, import the certificate, and enable trust.