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Cindy TranCindy Tran 

Concerns on disabling "HTTPS scanning" to fix Firefox insecure connection.

Disabling "HTTPS scanning" did fix Firefox's insecure connection issue, however, I'm immensely concerned when turning it off. I've read through many Firefox forums and none of the solutions have worked (other than this one, of course). I'm wondering what the consequences are as I don't understand this fully, and if anyone has a safe alternative fix. 
(I'm not sure if this matters, but I scanned with AVG and found no issues or viruses. I also did a reinstall of AVG)

Thanks in advance. 
Best Answer chosen by Cindy Tran
Balasubramanian SBalasubramanian S (Avast) 
Hello Cindy,

I understand the inconvenience.
Could you share the screenshot of "connection error" appearing on browser to assist further?
You can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.
May I know the operating system in which you are facing this issue?

All Answers

Balasubramanian SBalasubramanian S (Avast) 
Hello Cindy,

I understand the inconvenience.
Could you share the screenshot of "connection error" appearing on browser to assist further?
You can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.
May I know the operating system in which you are facing this issue?
This was selected as the best answer
Cindy TranCindy Tran
Hi,
I actually did an improper reinstall of AVG by not restarting the PC. Whoops. After reinstalling AVG, Firefox went back to normal. But in case someone stumbles upon the same issue, the "insecure connection" error pops up when entering safe websites (even Google), claiming it doesn't have a certificate, called SEC_ERROR_UNKNOWN_ISSUER. This fix worked on Windows 10 for clarification.

However, thank you for the fast response. Appreciate the help.
Balasubramanian SBalasubramanian S (Avast) 
You are most welcome and appreciate your efforts on this matter.
It seems that you might have been using a old version of AVG and after a re-installation the issue got fixed as it will install the latest version.
Thank you for sharing this here.
Feel free to contact us if you need assistance with AVG.
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