This is ActiveX all over again. Browser extensions should not be made an official thing. Some extensions are malicious and even legit ones have too much access

This is ActiveX all over again. Browser extensions should not be made an official thing. Some extensions are malicious and even legit ones have too much access to your data. If plug-ins are made official then companies may choose to provide functionality via plug-ins instead of through regular web-based applications and that's a terrible idea.