Not really. If you compare "Identify as Opera" and "Identify as Firefox", you will see that the web toolbar notifications and share buttons are missing for the

Not really. If you compare "Identify as Opera" and "Identify as Firefox", you will see that the web toolbar notifications and share buttons are missing for the Opera user agent (also, advanced feedback tools are missing, where it takes a screenshot and allows you to highlight the problem area). I created the User JS and extension that will inject the code into the DOM. See my earlier post.