tabs.onRemoved
Fired when a tab is closed.
Syntax
browser.tabs.onRemoved.addListener(callback)
browser.tabs.onRemoved.removeListener(listener)
browser.tabs.onRemoved.hasListener(listener)
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)
-
Check whether
listener
is registered for this event. Returnstrue
if it is listening,false
otherwise.
addListener syntax
Parameters
callback
-
Function that will be called when this event occurs. The function will be passed the following arguments:
tabId
-
integer
. ID of the tab that closed.
removeInfo
-
object
. The tab's window ID, and a boolean indicating whether the window is also being closed.
Additional objects
removeInfo
windowId
-
integer
. The window whose tab is closed. isWindowClosing
-
boolean
.true
if the tab is being closed because its window is being closed.
Examples
Listen for close events, and log the info:
function handleRemoved(tabId, removeInfo) {
console.log("Tab: " + tabId + " is closing");
console.log("Window ID: " + removeInfo.windowId);
console.log("Window is closing: " + removeInfo.isWindowClosing);
}
browser.tabs.onRemoved.addListener(handleRemoved);
Example extensions
Browser compatibility
BCD tables only load in the browser
Note: 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.