[crazygringo]

Maybe they were unfashionable but that's not why they died at all.

Flash died because the iPhone killed it because Adobe refused to work with Apple to make it more secure and more power-efficient. Ultimately it was Adobe's own-goal.

And Visual Basic was similarly a self-inflicted death, when Microsoft decided to make VB.NET incompatible with the previous VB6. But what was bad for Microsoft was good for the internet, as HTML+JS ultimately replaced VB6 for enterprise apps.

FoxPro I don't know about, though. Never approached Flash/VB in terms of popularity.

Flash videos and apps got easily replaced, and animations with HTML/CSS/JS, and those bite-sized Flash games basically got replaced with mobile gaming as apps.