[ReminderFox #704] .. Check Messenger settings for opening web pages. (Called: file:////home/henwag/.thunderbird/rfx4k25a.default/reminderfox/printing/viewAndPrint.htm

[HENRI]

... Please set a descriptive 'Subject' for your request ...
At startup each time i get the message:

Check Messenger settings for opening web pages. (Called: file:////home/henwag/.thunderbird/rfx4k25a.default/reminderfox/printing/viewAndPrint.htm

How can this be avoided.
Thanks in advance for your help
___________________________________________________________
This relates to ReminderFox installed on: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0

[Guenter]

This seems to be part of http://www.reminderfox.org/printing-agenda-preview/

You should be able to switch it on/off using RmFX Options --> tab:Access, see section "Agenda/Printing"