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Known Participant
June 18, 2025
Question

Antivirus warning - SSL Certificate expired

  • June 18, 2025
  • 2 replies
  • 346 views

Hello. As of today, Wednesday 18 June, a firewall warning keeps popping up in a very annoying way: "Connection to this website is not secure." Apparently, the SSL Certificate has expired. I am attaching a pic of the warning.

Nothing has changed on my side, no antivirus update, no new apps installed. I use Firefly almost daily and this is the first time this happens. I hope it will be solved soon.  And please don't ask me to change my antivirus. Thanks!

2 replies

Participant
June 27, 2025

I have the same issue. 

Community Expert
June 18, 2025

Hey! I'm using Avast and Firefly and do not experience this issue, so I'm not completely sure whats causing this. 

 

However, in Avast settings, under core shield, go to web shield and try to disable "Force downgrade HTTP3 (Recommended)". 


You can also add the firefly website as an exception. Then this message shouldn't appear.

 

Let me know if it helps! 🙂 

Known Participant
June 25, 2025

Thank you. The option that most resembles your suggestion is "Enable QUIC/HTTP3 Scanning". I don't have the exact option you mention and I can only enable or disable the scanning entirely. Not for specific sites. Go figure. Thanks again!