anonym
I "set up" my extensions there, same as I can set up Download settings in Settings,
The correct analogy would be to "set up" Extensions settings not manage extensions themselves, like you do not manage downloads or manage bookmarks in Preferences.
I would argue everyone coming from other browsers would assume them, wrongly or not) would be a problem
I agree that everyone expects it there, still doesn't make it right.
Downloads are not part of the browser (they are external and end up in some folder), extensions are (they become so by extending the browser). Bookmarks too are not part of the browser either
Extensions are not part of the browser either, the browser does not ship with them. They are an external resource added to the browser, like you add a bookmark or download a file.
The way we organized logical hierarchy is that Preferences is for settings of stuff that ships with the browser (so "browser settings").
Library window is for stuff that you add to the browser with use (currently including Bookmarks/History/Extensions/Downloads/Passwords). This is your library of resources.
Perhaps we just need better exposure for Library window?