[mrs bouquet]

These often come up when I am exploring on Google - say a recipe , gardening, etc.   They ask me to accept, do I have to.  What will happen if I do - What will happen if I don't ?   regards Ms Bouquet

[Lardman]

It's information stored on your machine by the website you're visiting. If you don't accept them sites might not work properly or fully. It's a trade off between ease of use vs privacy.

[Veg Plot 1B]

If you are not happy with them set your pc to delete them when you shut down.

[Goosegirl]

I often ignore them and the site works well. If it's a site I trust then I accept them. If it's a site I haven't used before and it won't let me on, I shut it down.

[mrs bouquet]

Thanks for your replies - that make sense now.   I shall try Gg's approach.   regards Mrs Bouquet