bookmarks.onImportBegan
Fired when the browser has started importing a set of bookmarks.
While a set of bookmarks is being imported, onCreated may fire a lot of times. If your extension is listening to onCreated, and the listener is expensive, you should also listen for onImportBegan and onImportEnded. When you receive onImportBegan, ignore onCreated until you receive onImportEnded. You can handle all other notifications as usual.
Syntax
js
browser.bookmarks.onImportBegan.addListener(listener)
browser.bookmarks.onImportBegan.removeListener(listener)
browser.bookmarks.onImportBegan.hasListener(listener)
Events have three functions:
- addListener(listener)
- 
    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
- listener
- 
    The function called when this event occurs. It's passed no parameters. 
Browser compatibility
BCD tables only load in the browser
Examples
js
function handleImportBegan() {
  console.log("Importing…");
}
function handleImportEnded() {
  console.log("Import finished.");
}
function handleClick() {
  browser.bookmarks.onImportBegan.addListener(handleImportBegan);
  browser.bookmarks.onImportEnded.addListener(handleImportEnded);
}
browser.browserAction.onClicked.addListener(handleClick);
Note: This API is based on Chromium's chrome.bookmarks API. This documentation is derived from bookmarks.json in the Chromium code.