Review for Compact Headers by Kachera
Rated 1 out of 5 stars
Great add-on, but:
1) why on earth does it need access to my entire computer outside of Thunderbird?
2) why do not use the code on github?
good app? yes to not trust
The permissions are needed for this type of add-on, nothing I can do about that.
Check it on github: https://github.com/dillenger/compact-headers
To create your own collections, you must have a Mozilla Add-ons account.