Even if your date looks blank and asks "What's a browser?", you've found out something useful. If they refuse to answer, claim not to remember, or say they have none, that is still information.
I think it would be a useful question of self-examination as well. There, laid out before you, is a list of current and maybe a few old interests.
Are there things you know are there, but just don't want to go there right now, not for months, maybe since last year, look, just don't go on about it, OK?
Are there some that, like acquaintances, you thought might look cool there or looked really useful at the time, but have never really been so?
Are there some that are beyond favourites, like, every day, like, I better check again now, just in case; no, I don't think I'm always there, what is this, the Inquisition?
I realise there are people using iPads and the like, who might only do apps, but again, asking the title question will still be a good opener.