Add-ons are installable enhancements to the Mozilla Foundation's projects, and projects based on them. Add-ons allow the user to add or augment application features, use themes to their liking, and handle new types of content.
Bing Bar (formerly MSN Toolbar) is a browser extension toolbar for Internet Explorer, developed by Microsoft. Bing Bar replaced Windows Live Toolbar in Windows Live Essentials 2011 ("Wave 4") announced on June 23, 2010. Bing Bar was previously supported on Mozilla Firefox but Microsoft discontinued support.
Hospitality is the relationship between the guest and the host, or the act or practice of being hospitable. This includes the reception and entertainment of guests, visitors, or strangers.