Browsing Protection Conflicts with Sending Mail on Thunderbird
Since yesterday I have not been able send emails on Thunderbird when F secure Browsing protection is on.
I can however send with no problem when I disable Browsing protection. I have discovered that the problem is associated with Browsing Protection by Trial and Error.
I also have a similar problem wth another program I use for sending out "mail merge" emails - Mailist Controller.
For the moment I am disabling Browsing Protection - and being careful about which sites I visit.