OK, I think the post you are referring to is this one:
But this method will basically open the extension within the body of the browser, not in the form of an “extension”. So would there be any benefit of launching the browser extension in an SSB as opposed to launching the web vault in an SSB?
What I thought you meant when you said to use the extension in an SSB was something like setting up an SSB to access, say, my online banking website, but be able to use the browser extension to autofill to login credentials.