The notice said that if you use several Google products, you must use the same ID and PW in all of them. Google wants to send you targeted advertising that's more consistent, but they say they want "to make your internet exoperience more personalized." Another reason I have quit most Google products.

You have to change your ID and PW to make them all alike. They're probably geared not to accept differences till you do.

As for remembering ID's and PW's, Firefox does just fine.