The lightning disappeared. Was working fine before.

Can not find a way to recover.

Go Tools | Add - ons | Extensions

If this is disabled, try it the reactivation.

If she says it's not compatible, remove it and reinstall it.

If it is there, but does not delete it, download it and install it again.

If she is not there, install it.

To install, simply type the lightning in the search at the top of the page box modules.

Tags: Thunderbird

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