Which of the following is added to prefs.js when the console is automatically opened during JavaScript error?

Which of the following is added to prefs.js when the console is automatically opened during JavaScript error? Correct Answer user_pref(“javascript.console.open_on_error”, true);

The prefs.js file, located in the profile folder, is used by Firefox and other Mozilla-based applications to store settings. For instance, when you create a new e-mail account in Thunderbird, the account name and server settings will be stored in the prefs.js file in your Thunderbird profile folder. The code : user_pref("javascript.console.open_on_error", true); is added to prefs.js when the console is automatically opened during JavaScript error.