Rated 2 out of 5 stars

le mirh ar Samh. 6, 2018 ·

Non-restartless extensions are no longer supported in TB 64 (was totally working before).
It shouldn't be that hard to fix.

Rated 4 out of 5 stars

le mirh ar Noll. 3, 2017 ·

This is perfectly compatible even in thunderbird 59. A real pity you must force installation from file because somebody forget to bump supported number.