Developer reply by David Adler
Rated 5 out of 5 stars
It's been broken in Nightly channel for a while now, kindly fix it!
I tested both stable and development version!
Appreciate it!
Update:
The Sweet developer toke less than 12 hour to response and update the beta to support Nightly again!
Thanks a million! :D
Fix for Nightly is released in 3.1beta1. https://addons.mozilla.org/en-US/firefox/addon/thumbnail-zoom-plus/versions/
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