Mozilla Support ▸ Websites say cookies are blocked - Unblock them.To manage your global cookie preferences for all websites that you visit using Mozilla Firefox, refer to the following article from Mozilla Support: Mozilla Support ▸ JavaScript settings and preferences for interactive web pages.For more information about JavaScript settings in Mozilla Firefox, refer to the following article from Mozilla Support: If you have disabled JavaScript using a browser add-on that allows you to customize your JavaScript settings, you need to re-enable JavaScript using this add-on.
JavaScript is enabled for all websites by default in Mozilla Firefox. Google Chrome Help ▸ Clear, enable, and manage cookies in Chrome.To manage your cookie preferences in Google Chrome, refer to the instructions under Change your cookie settings in the following article from Google Chrome Help:
This means that all webpages with a web address beginning (such as allow JavaScript.