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CloseDeveloper reply by Patrick Brunschwig
Rated 1 out of 5 stars
It would be nice if I could use it... but my T-Bird says it's Not Signed and thus not usable to me. V52.9.0 ESR.
This review is for a previous version of the add-on (2.0.8).Thunderbird doesn't check signing. Are you sure you didn't accidentally install it in Firefox?
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