Thunderbird 64-bit - version 78.1.0 is released
2020-07-31   link

Firefox 64-bit - version 79.0 is released
2020-07-27   link

Thunderbird 64-bit - version 78.0.1 is released
2020-07-22   link

Thunderbird 64-bit - version 78.0 is released
2020-07-15   link

Firefox 64-bit - version 78.0.2 is released
2020-07-09   link

Firefox 64-bit - version 78.0.1 is released
2020-07-01   link