runtime.onInstalled

Fired when the add-on is first installed, when the add-on is updated to a new version, and when the browser is updated to a new version.

Syntax

chrome.runtime.onInstalled.addListener(function(
  details // object
) {...})
chrome.runtime.onInstalled.removeListener(listener)
chrome.runtime.onInstalled.hasListener(listener)

This API is also available as browser.runtime.onInstalled.*.

Events have three functions:

addListener(callback)

Adds a listener to this event.

removeListener(listener)

Stop listening to this event. The listener argument is the listener to remove.

hasListener(listener)

Checks whether a listener is registered for this event. Returns true if it is listening, false otherwise.

addListener syntax

Parameters

function

Callback function that will be called when this event occurs. The function will be passed the following arguments:

details

object (see below).

Additional objects

details

reason

An runtime.OnInstalledReason value stating the reason that this event is being dispatched.

previousVersionOptional

string. Indicates the previous version of the extension that was just updated. This is present only if the reason value is update.

idOptional

string. Indicates the ID of the imported shared module extension that updated. This is present only if the reason value is shared_module_update.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Examples

When the add-on is installed, log the install reason and open https://chilloutandwatchsomecatgifs.com/:

function handleInstalled(details) {
  console.log(details.reason);
  chrome.tabs.create({
    url: "https://chilloutandwatchsomecatgifs.com/"
  });
}

chrome.runtime.onInstalled.addListener(handleInstalled);

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