Rated 5 out of 5 stars

Tremendous. this is the only way to bring mbox files into Gmail. Hoping for a version available in Thunderbird 115 soon! It should be integrated with Thunderbird, imho.

This review is for a previous version of the add-on (12.0.4). 

thatmntishman
Many thanks for the kudos review!
I am in the final beta stages, but discovered mbox issues with Thunderbird that have forced me to rewrite all the mbox code. PLEASE join the beta group to help me make sure the new code will get some real world testing. That would be great!

You can track and download the latest here:

https://github.com/thundernest/import-export-tools-ng/issues/408

You can post feedback here:
https://github.com/thundernest/import-export-tools-ng/issues/409

b6 works very well except for the mbox issues. B7 will have at least single mbox support shortly.
Thanks
Christopher