Not sure how I fixed the problem in the end, but I decided to clean out the cookies and the problem was no longer there. Firefox can be a bit slack in upgrading the cookies at times.
Not sure why you would want to do that to those pages? But th best answer I can come up with is go to the page you don’t want followed and in the bottom right hand corner click the radio button in the robot meta that best applies to you.
Go to posts then categories and then make the relevant categories, not forgetting to give each one a description and a slug. Then in your posts you can nominate a category that you have created. Hope this answers your question.