Vlad Yes, though now that I think about it more, we need to define "Content" and "Settings"
Settings = anything in Preferences, Toolbar customisations
Content = Bookmarks, Saved Passwords, Browsing Data/History
Extensions are a bit of a grey area in that some Extensions have both "Settings" and "Content"
So to refine the suggestion, a Reset menu item opens a popup with three buttons:
- Erase all Settings
- Erase all Content
- Erase all Extension Content and Settings
Something like this