ActiveX controls can modify the properties of objects in an application.

Activex data object Database connection Activex data object Database connection

ActiveX Data Object.net

ADO means Active data objects and .net meaning is not given in Microsoft web site.

Visual basic is a programming language from Microsoft. Some of its parts include data access objects, ActiveX data objects, and remote data objects. Their function is to provide access to databases.

The "objects" in IE normally are ActiveX controls. Firefox does not set up ActiveX controls. There could possibly be script data within your Firefox cache (or IE Temporary internet Files). However, these normally are not globally available; only the website that set up them there need to possess privileges to entry them.