Developer reply by Jim Danner
Rated 1 out of 5 stars
If it worked at all in 115 I would give it a better rating. It copies nothing,
The extension still works on my machine in TB 115.2.2. If you'd like to help find the possible bug, please create an issue on the support site https://gitlab.com/JimDanner/autocopy/-/issues
Are you sure you were trying to copy text from the content of an email? Unfortunately, copying e.g. the subject or sender is out of bounds in current TB versions.
To create your own collections, you must have a Mozilla Add-ons account.