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Thunderbird Security Certificate Issue Fix

I’ve been using Mozilla Thunderbird for some time now, and recently it started bugging me all the time when checking my emails. A window pops up each time asking me for security certificates exception, and even though I keep selecting the “Permanently store this exception” option, Thunderbird still keeps asking me every single time I open it.

So just today, after a couple of months of annoyance I finally got tired of it and looked up a solution. It’s actually very easy to fix, but being lazy as I am I never bothered to fix it until now.


Basically, what you need to do is this:

  1. Open Thunderbird and click the “Tools” in the menu bar
  2. Switch to “Advanced” tab
  3. Select the “Certificates” tab
  4. Click the “Validation” button
  5. Disable the certificate validation

For convenience you can also view the steps in the screenshot below:

In a majority of cases, you don’t need to confirm certificates and whatnot every single time you want to read your email, and it doesn’t really pose a security issue. This should make your work with this excellent email client more enjoyable.


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