Just recently I've come across several websites (sites that I have used regularly for years) that give me the following message:
This webpage wants to run the following add-on: 'Java SE Runtime Environment 7 Update 25' from 'Oracle America, Inc'
I let it slide for a while but it seems like the sites did that every time I logged on so I let it run.
It got installed and I went to Java's website to verify the installation. The installation was verified and Control Panel - Programs and Features lists the program as of yesterday 6/20/13.
Today I go on to one of my usual sites and get the same message.