It would be a great help if the Bible reference was displayed in the tab hover information for Bibles (at least!).
Sometimes I'm working with 3 (or) passages simultaneously, often in the same version. For example, for this Sunday I'm preaching on the topic of Fellowship (from Acts 2:42), and looking at 3 passages (Ps 133; John 17:20-27; 1Pet 2:4-10). I have 3 copies of the NIV (our pew Bible) up in separate tabs. I find myself trying to remember which copy has which reference, and wish that it were displayed in the hover information.
So I thought I'd make this recommendation here. Perhaps it's been made before, if so, add my support for such a feature.