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Whenever I start Thunderbird, I now get a Systems Integration window with Set as Default and Skip Integration buttons. How do I stop getting this window?

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  • Last reply by Wayne Mery

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The System Integration box just started appearing when I start Thunderbird. I've unchecked the box for Always perform this check when starting Thunderbird. I've uninstalled Thunderbird and reinstalled it. The checkbox in Options > General for checking for default email client is also unchecked. I do not have any other email client installed. Does anyone know how to stop it? Thanks.

The System Integration box just started appearing when I start Thunderbird. I've unchecked the box for Always perform this check when starting Thunderbird. I've uninstalled Thunderbird and reinstalled it. The checkbox in Options > General for checking for default email client is also unchecked. I do not have any other email client installed. Does anyone know how to stop it? Thanks.

Chosen solution

This is a current bug whose workaround is described in the two posts starting here:

https://support.mozilla.org/en-US/questions/1148107#answer-941265

Now fixed in TB 45.6 released Dec. 28 2016:

https://www.mozilla.org/en-US/thunderbird/45.6.0/releasenotes/

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Chosen Solution

This is a current bug whose workaround is described in the two posts starting here:

https://support.mozilla.org/en-US/questions/1148107#answer-941265

Now fixed in TB 45.6 released Dec. 28 2016:

https://www.mozilla.org/en-US/thunderbird/45.6.0/releasenotes/

Modified by sfhowes

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The fix going out in the next version. It might take 1-2 weeks to ship the new version 45.6.0