Contains information for the Extension Manager. Holds the information about updates for extensions. The version of the extension Information about repositories for extensions. This links is used from the Extension Manager. A user can click on the &Download extensions...& control so that a browser is opened which displayed the website to which directs this URL. Contains information about available or ignored updates for extensions." This set lists all known updates for extensions, which where not applied yet. This set lists all updates for extensions which the user wanted to ignore.