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Thunderbird: unresponsive script - what to do?

  • Jan 12, 2026
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If you get in Thunderbird the warning "unresponsive script", then you proceed as follows.

The script does not respond in Thunderbird - warning to get rid of

  1. If you click in the Dialog on "Next run" and the warning is still displayed, then it brings nothing to the Skritp longer run.
  2. If you can use Thunderbird to "Next run", then the script simply needs more time to Process
  3. Sometimes this warning occurs in connection with Firewalls. Possibly you need to Thunderbird in there as an exception set. Check whether the warning after a Thunderbird restart is gone.
  4. Maybe JavaScript is also to blame for it. You go into the settings in Thunderbird. Click there on "Advanced" and "General" and then on "edit configuration".
  5. Then click on "I'll be careful" and search for "javascript.enabled".
  6. If "True" is, click with the right mouse button on the entry and select "toggle". You then start Thunderbird new.
  7. In order not to permanently on JavaScript to renounce must, get the extension "NoScript" for your Thunderbird E-Mail Client. So that you can allow the execution of scripts on certain websites or block. Read in the following practice tip, as in Thunderbird Addons to install.
Not answer script
Read also, how to you in Thunderbird E-Mails for viruses.

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