Thanks for replying. I am sure there is more than one way to change it. But I am not a Web developer and did not want to spend time on it... I use Firefox. Fou

Thanks for replying. I am sure there is more than one way to change it. But I am not a Web developer and did not want to spend time on it... I use Firefox. Found the icon in the network log and blocked that URL. But cannot see any effect even on the first reload. When cleaning the cache and going to a new tab the block entry has even disappeared. Doesn't seem to be a persistent setting for the whole browser. Maybe only for one developer tools session??? A quick web search brings up https://addons.mozilla.org/en-US/firefox/addon/request-blocker-we/ https://addons.mozilla.org/en-US/firefox/addon/request-block... . But it's not widely used, so I don't want to start auditing it's code now. I guess uBlock Origin might also offer such functionality. Have never used it. I use CookieAutoDelete and Firefox account containers and if a page has too annoying ads I close it. Prefer spending less time fiddling with my browser these days.