On Aug 14th 11 PM ET/Aug 15th 03:00 UTC, due to scheduled Firefox Account server maintenance, users may not be able to sign in or create a new subscription. This is expected to last approximately 30 minutes. Status updates can be found at https://status.vpn.mozilla.org or https://status.relay.firefox.com.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Add certificate Security Exception - override how thunderbird identifies this site

  • 2 replies
  • 1 has this problem
  • 641 views
  • Last reply by FredMcD

more options

When Thunderbird is open, I keep getting this message. What gives?

Note: This site attempts to identify itself with invalid information

When Thunderbird is open, I keep getting this message. What gives? Note: This site attempts to identify itself with invalid information
Attached screenshots

Modified by Wayne Mery

Chosen solution

This is usually the result of an anti virus program using it's own security certificates that have not been added to Thunderbird's certificate store as a certifying authority. As anti virus vendors are not certifying authorities they have to be added manually. Most of the anti virus product have instructions on their web site on how to abrogate your security so their product can function.

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

This is usually the result of an anti virus program using it's own security certificates that have not been added to Thunderbird's certificate store as a certifying authority. As anti virus vendors are not certifying authorities they have to be added manually. Most of the anti virus product have instructions on their web site on how to abrogate your security so their product can function.

more options

Thank you for your help.