■Outline　

Mozilla Foundation released Thunderbird 38.0.1 to prevent several vulnerabilities on June.12.local time.

The support for Thunderbird lower than 37.x is over．

■Candidate

- Thunderbird lower than 38.0.1

■Measures
This issue will be solved by updating it to the latest version provided by developer or OS vendor.

■References

Mozilla Foundation
The Mozilla Thunderbird Blog

My Navi News
Thunderbird 38 is coming -Calendar function will be valid