Thanks for advice. I use gmail online, and I usually leave it running as I have a lot of emails. If I am using one or more items from the taskbar beneath Google's various goodies.
Babylon comes up when I need to use more than one item.
As of now, nothing I have tried will prevent it from joining in.I am running XP, if that is helpful.
All my efforts at finding a usable pdf reader so far have come to nothing. If I do manage to produce something, it will only show me a picture of whatever I have opened, rather than the actual page. When I do this, the only way to get it off the screen is to crash my system.
In your browser you need to manage your search engines. In IE open tools, manage add-ons then search providers and remove Babylon and others as in link above. In firefox, If I remember correctly, click the down arrow in the search bar on right and select manage search engines. Also check plug-ins and extensions. Which program reads your PDFs now? Uninstall it then install Foxit reader.
If Firefox is your browser: look in Tools, Options, Applications and scroll down list to 'PDF Document' click on it to hightlight it and then at right under Action column you will get a drop down arrow menu to choose what you want to happen. I have mine set to 'Always Ask' so when I click on a .pdf link I then get popup box, choice of being able to save to pc or to open with a program of my choice.