User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0

Steps to reproduce:

Went to a folder, filtered by attachment, selected several emails, tried to find a way to detach/delete attachments.

Actual results:

There is no way to batch detach/delete attachments.

Expected results:

For large profiles (mine counts around 20Gb, which is quite large for a 120Gb laptop), going through thousands of emails to detach/delete files one at a time is simply not an option. With the AttachmentExtractor add-on no longer working (Thunderbird 66 here), there must be a way to batch detach/delete attachments.

This is covered in bug 92146