When trying to update the java plugin (which is good practice security-wise), the installer usually wants to install a crappy Ask.com toolbar. Normally there is a checkbox you can uncheck if you don’t want the toolbar (which you don’t, for obvious reasons). Unfortunately the checkbox is gone, and the installer forces you to install the accursed toolbar before continuing.
There are a few ways to install the java plugin without installing the Ask.com toolbar, but it’s probably better to uninstall the damn thing altogether, ridding yourself of the cesspit of vulnerabilities it currently is (and has been for a while).
It’s a shame. I used to like java (for server stuff it’s fine and alive & kicking), but it looks like Oracle is doing a great job of killing the last grains of hope there were for java on the client.