Thunderbird 64-bit - version 68.3.0 is released
2019-12-03   link

Firefox 64-bit - version 71.0 is released
2019-12-02   link

Thunderbird 64-bit - version 68.2.2 is released
2019-11-07   link

Firefox 64-bit - version 70.0.1 is released
2019-10-31   link

Thunderbird 64-bit - version 68.2.1 is released
2019-10-31   link

Thunderbird 64-bit - version 68.2.0 is released
2019-10-23   link