Fired when a tab is detached from a window, for example because it is being moved between windows.
Syntax
browser.tabs.onDetached.addListener(listener) browser.tabs.onDetached.removeListener(listener) browser.tabs.onDetached.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:
tabIdinteger. ID of the tab that was detached.
detachInfoobject. ID of the previous window, and index of the tab within it.
Additional objects
detachInfo
oldWindowIdinteger. ID of the previous window.oldPositioninteger. Index position that the tab had in the old window.
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.
Update compatibility data on GitHub
| Desktop | Mobile | ||||
|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Firefox for Android | |
| Basic support | Chrome Full support Yes | Edge Full support 15 | Firefox Full support 45 | Opera Full support Yes | Firefox Android Full support 54 |
Legend
- Full support
- Full support
Examples
Listen for detach events, and log the info:
function handleDetached(tabId, detachInfo) {
console.log("Tab: " + tabId + " moved");
console.log("Old window: " + detachInfo.oldWindowId);
console.log("Old index: " + detachInfo.oldPosition);
}
browser.tabs.onDetached.addListener(handleDetached);
Acknowledgements
This API is based on Chromium's chrome.tabs API. This documentation is derived from tabs.json in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
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