Fired when a tab is replaced with another tab due to prerendering or instant.
Syntax
browser.tabs.onReplaced.addListener(listener) browser.tabs.onReplaced.removeListener(listener) browser.tabs.onReplaced.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:
addedTabIdinteger. ID of the replacement tab.
removedTabIdinteger. ID of the tab that was replaced.
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.
| Chrome | Edge | Firefox | Firefox for Android | Opera | |
|---|---|---|---|---|---|
| Basic support | Yes | No | 45 1 | 54 1 | Yes |
Examples
Listen for replacement events, and log the associated info:
function handleReplaced(addedTabId, removedTabId) {
console.log("New tab: " + addedTabId);
console.log("Old tab: " + removedTabId);
}
browser.tabs.onReplaced.addListener(handleReplaced);
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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