A BrowserSetting
object which determines whether the browser's context menu is shown on the mouseup event or on the mousedown event.
Its underlying value is a string that may be either "mouseup" or "mousedown".
The default value is "mouseup" on Windows, and "mousedown" on macOS and Linux. Assigning to it on Windows has no effect - the setting is only designed to allow the context menu to be opened on mouseup instead of mousedown, not the inverse.
Browser compatibility
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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.
Examples
Set the setting to "mouseup":
function logResult(result) {
console.log(`Setting was modified: ${result}`);
}
browser.browserSettings.contextMenuShowEvent.set({value: "mouseup"}).
then(logResult);