Based on the provided extracts, changing the

WEBAPP_URL

in the

.env

file and adding "80:80" to

airbyte-proxy.ports

in the

docker-compose.yaml

file should generally be enough to change the port Airbyte is served on. However, there could be a few reasons why it's not available on port 80 in your browser: 1. Port 80 is already in use: Port 80 is the default port for HTTP traffic, so it's possible that another service is already using it. You can check if port 80 is in use with the command

sudo lsof -i :80

on Unix-based systems or

netstat -ano | findstr :80

on Windows. 2. Firewall settings: Your firewall might be blocking traffic on port 80. You would need to check your firewall settings and make sure traffic on port 80 is allowed. 3. Docker needs to be restarted: After making changes to the

.env

file or

docker-compose.yaml

file, you need to restart Docker for the changes to take effect. You can do this with the command

docker-compose down

followed by

docker-compose up

. If you're still having trouble, it might be helpful to check the Airbyte logs for any error messages. You can do this with the command

docker-compose logs

in the directory where your

docker-compose.yaml

file is located. Please note that these are general suggestions and the exact solution might depend on your specific setup and environment. If you're still having trouble, I would recommend referring to the [Airbyte Documentation](https://docs.airbyte.com) or asking for help on the [Airbyte Forum](https://discuss.airbyte.io).