browserSettings.contextMenuShowEvent
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.
Examples
Set the setting to "mouseup":
js
function logResult(result) { console.log(`Setting was modified: ${result}`); } browser.browserSettings.contextMenuShowEvent .set({ value: "mouseup" }) .then(logResult);