The onErased() event of the downloads API fires when a download is erased from the browser history.
The listener is passed the downloadId of the downloads.DownloadItem object in question as a parameter.
Syntax
browser.downloads.onErased.addListener(listener) browser.downloads.onErased.removeListener(listener) browser.downloads.onErased.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 a given listeneris registered for this event. Returnstrueif it is listening,falseotherwise.
addListener syntax
Parameters
- callback
- 
 A callback function that will be called when this event occurs. This function will be passed the following arguments: - downloadId
- An integerrepresenting theidof thedownloads.DownloadItemthat was erased.
 
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 | 48 | 48 | Yes | 
Examples
Add a listener for onErased events, then erase the most recent download:
function handleErased(item) {
  console.log(`Erased: ${item}`);
}
browser.downloads.onErased.addListener(handleErased);
var erasing = browser.downloads.erase({
  limit: 1,
  orderBy: ["-startTime"]
});
This API is based on Chromium's chrome.downloads API.
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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