--- sidebar_label: BrowserLaunchArgumentOptions --- # BrowserLaunchArgumentOptions interface Launcher options that only apply to Chrome. #### Signature: ```typescript export interface BrowserLaunchArgumentOptions ``` ## Properties
Property Modifiers Type Description Default
args `optional` string\[\] Additional command line arguments to pass to the browser instance.
debuggingPort `optional` number Specify the debugging port number to use
devtools `optional` boolean Whether to auto-open a DevTools panel for each tab. If this is set to `true`, then `headless` will be forced to `false`. `false`
headless `optional` boolean \| 'shell' Whether to run the browser in headless mode. `true`
userDataDir `optional` string Path to a user data directory. [see the Chromium docs](https://chromium.googlesource.com/chromium/src/+/refs/heads/main/docs/user_data_dir.md) for more info.