Fired when a connection is made from either an extension process or a content script.
Syntax
browser.runtime.onConnect.addListener(function(
port // Port
) {...})
browser.runtime.onConnect.removeListener(listener)
browser.runtime.onConnect.hasListener(listener)
Events have three functions:
addListener(callback)- Adds a listener to this event.
removeListener(listener)- Stop listening to this event. The
listenerargument is the listener to remove. hasListener(listener)- Check whether
listeneris registered for this event. Returnstrueif it is listening,falseotherwise.
addListener syntax
Parameters
callback-
Function that will be called when this event occurs. The function will be passed the following arguments:
portruntime.Port.
Browser compatibility
Examples
Example add-ons
Acknowledgements
This API is based on Chromium's chrome.runtime API. This documentation is derived from runtime.json in the Chromium code.
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