userScripts.configureWorld()

Configures USER_SCRIPT execution environments for the extension.

Changes to world configurations only apply to new instances of the world: A configuration won't apply to a world initialized by the execution of a user script in a document until the document is reloaded. However, the browser may revoke certain privileges when a configuration is updated. For example, message calls from a USER_SCRIPT world may fail if the extension sets messaging to false.

World configurations persist until the extension is updated or the configuration is reset by userScripts.resetWorldConfiguration().

let configuredWorld = browser.userScripts.configureWorld(
  properties       // object
);