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

Problem opening Thunderbird due to Bitdefender

  • 3 replies
  • 0 have this problem
  • 58 views
  • Last reply by sfhowes

more options

When I try to open Thunderbird, my antivirus Biddefender blocks the application, for following reason: "biddefender has detected an exploit of a thunderbird.exe vulnerability and has blocked the application"

I have been using Thunderbird for ages and never experienced any problems. Is Biddefender correct and is there a vulnerability with Thunderbird? Or should I add Thunderbird as a safe application in Biddefender?

Many thanks and kind regards, Anne

When I try to open Thunderbird, my antivirus Biddefender blocks the application, for following reason: "biddefender has detected an exploit of a thunderbird.exe vulnerability and has blocked the application" I have been using Thunderbird for ages and never experienced any problems. Is Biddefender correct and is there a vulnerability with Thunderbird? Or should I add Thunderbird as a safe application in Biddefender? Many thanks and kind regards, Anne

Modified by Wayne Mery

Chosen solution

I suggest you disable the Advanced Threat Defense option in BD or add TB as an exception:

https://support.mozilla.org/en-US/questions/1275787

Read this answer in context 👍 1

All Replies (3)

more options

If you downloaded from the Thunderbird website, you should be safe. No one has indicated any virus problems here.

more options

Thank you for the confirmation. I did not download a new version of Thunderbird. And I always downloaded it from the Mozilla site. So I will have to indicate the application as being safe in Thunderbird.

more options

Chosen Solution

I suggest you disable the Advanced Threat Defense option in BD or add TB as an exception:

https://support.mozilla.org/en-US/questions/1275787