Sites redirect to spam site

I have just within the last day noticed when I visit one particular news type site that it constantly and consistently redirects me to a spam site telling me my phone is being ransomed or some such nonsense. I have tried incognito mode, I have cleared all personal data and cache and uninstalled Firefox then restarted phone then reinstalled and it keeps happening. I’ve noticed it once in a while with random other sites but it never stuck around this one seems more pervasive. I haven’t installed any new apps recently? I have no idea what to do but am concerned of course something is going on. Please help if you can! Thank you very much