1. We support installing and running Firefox, Chrome and Chromium. The `latest`, `beta`, `dev`, `canary`, `stable` keywords are only supported for the install command. For the `launch` command you need to specify an exact build ID. The build ID is provided by the `install` command (see `npx @puppeteer/browsers install --help` for the format).
2. Launching the system browsers is only possible for Chrome/Chromium.
## API
The programmatic API allows installing and launching browsers from your code. See the `test` folder for examples on how to use the `install`, `canInstall`, `launch`, `computeExecutablePath`, `computeSystemExecutablePath` and other methods.