Opera Help ActiveX and VBScript support in Opera The Opera browser does not have in-built support for Microsoft's Windows-specific ActiveX technology or the VBScript scripting language. Opera does however support the use of Netscape compatible plug-ins, which can provide similar functionality to most ActiveX controls. Java is also supported (provided it is installed), and is the most widely used language for embedded programs on the web. Opera also supports JavaScript, which is the most common s...