Multiple Threat secured pop-ups

Viruses & Threats
2

Hi Michael,

We are sorry to hear this.

We will help you to resolve the issue.

Please share us the screenshot of the threat message to investigate further.

You can post the screenshot here in your topic. Click on "Answer" & then click on the "Image" [mountain symbol] & follow the instructions.

Keep us posted.

3

Hi Michael,

We are sorry to hear this.

We will help you to resolve the issue.

Please share us the screenshot of the threat message to investigate further.

You can post the screenshot here in your topic. Click on "Answer" & then click on the "Image" [mountain symbol] & follow the instructions.

Keep us posted.

1

Every time I use  Firefox or Thunderbird I get the same AVG Threat secured message.  
Threat name Other:Malware-gen [Tri]
URL singlactive.com
Process  C Program Files (86) Mozilla Firefox\firefox.exe
How do I get rid of it?