Safari disappears once opened

Hello annfromlondon,

Thanks for reaching out to Apple Support Communities. Upon review of your post, it seems that you are having some issues with Safari shutting down unexpectedly. We can see why you’d want this taken care of, so let us help from here! Let’s start by reviewing the following article which may help: If Safari on Mac doesn't open a webpage or isn’t working as expected.

Additionally, this helpful article was linked to your posting in case you’ve not yet explored it: Update or reinstall Safari for your computer.

Please let us know if you have follow up questions, so we can continue assisting. Take care!