User Agent: Mozilla/5.0 (Windows NT 10.0; rv:74.0) Gecko/20100101 Firefox/74.0

Steps to reproduce:

Select individual e-mail that I want to print.
Select drop-down and choose print or use Cntl P
Choose printer to use
Select number of pages to print
Click print button

My TBird release is: 75.)b2 (32 bit)

Actual results:

Verbiage is lower left corner of TBird says document is printing.
Nothing ever shows up at printer.

Expected results:

Document should have printed.

FYI - I've sent the same e-mail to TBird V 68.6.0 (32 bit) and I can print that same e-mail from that non-beta version.