Gmail has worked fine with Avast for over a decade for me. But today I updated to build 25.6.10221.939 (June 17, 2025), restarted my computer, and now gmail in chrome goes blank with an Avast popup saying:
We prevented your connection to mail . google . com because it is a dangerous webpage. Threat category HTML:ExtortMail-NS [Scam] , process chrome.exe