Thunderbird Versions between 61 and 64

Thunderbird is undergoing a lot of change from version 60 through to version 65, and several underlying internal APIs that the Opacus Thunderbird extension relies upon are in a state of flux.

We're currently testing an update against Thunderbird 65 beta v3, with the aim of fully supporting version 65 on its release.

In the interim, parts of the extension may not function as expected, but we hope you'll bear with us during the transition.

Thanks,

The Opacus Team