Fired when the keyboard shortcut for a command is changed.

The listener is passed an object containing the name of the command, its new active shortcut, and its old shortcut.

Syntax

browser.commands.onChanged.addListener(listener)browser.commands.onChanged.removeListener(listener)browser.commands.onChanged.hasListener(listener)

Events have three functions:

addListener(listener)

Adds a listener to this event.

removeListener(listener)

Stop listening to this event. Thelistener argument is the listener to remove.

hasListener(listener)

Check whetherlistener is registered for this event. Returnstrue if it is listening,false otherwise.

addListener syntax

Parameters

listener

The function called when a command's shortcut changes. The function is passed these arguments:

changeInfo

object. An object containing the name of the command, its new active shortcut, and its old shortcut.

name

string. Name of the command. This matches the name given to the command in itsmanifest.json entry.

newShortcut

string. The new active shortcut for this command, or blank if no shortcut is active.

oldShortcut

string. The shortcut that was active for this command, or blank if no shortcut was active.

Examples

You could log changes to command shortcuts like this:

function handleChanged(changeInfo) {  console.log(`Shortcut for: ${changeInfo.name} changed`);  console.log(`From: ${changeInfo.oldShortcut}`);  console.log(`To: ${changeInfo.newShortcut}`);}browser.commands.onChanged.addListener(handleChanged);

Browser compatibility