Retrieves the Window for the add-on's background page.
This provides a convenient way for other privileged extension scripts, such as scripts running in options pages, or scripts running in browser action or page action popups (but not content scripts), to get direct access to the background script's scope. This enables them to access variables or call functions defined in that scope.
If the background page is an event page, the system will ensure it is loaded before calling the callback. If the add-on does not include a background page, this function sets runtime.lastError.
Syntax
browser.runtime.getBackgroundPage(
function(backgroundPage) {...} // function
)
Parameters
callbackfunction. The function is passed the following arguments:-
backgroundPageOptionalobject. Window for the background page, if there is one.
Browser compatibility
Examples
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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