Thunderbird remote content

[viking33]

Using TB 9.0.1. When receiving an email ( most all ) I get a message that it has blocked Remote Content on this message. Clicking on allow RC will then allow it on this particular message only. The next time I get an email from the same address, I get asked the same question. It does not seem to remember that I have ticked the box on that address in the address book to allow RC.
What am I missing here?
Is there another location to set this so that it will stick?
Not earthshaking but annoying.

Capture7.PNG

[jonwallace]

There's an interesting knowledgebase article here that might help.

[viking33]

There's an interesting knowledgebase article here that might help.

John,
Thanks for that link. The first two entries were things I have tried or are aware of but for whatever reason, the settings don't seem to stick.
I do only allow remote content for people or sites I trust and have never had any problems with non-persistent settings in earlier versions of TB. I will have to do a little more reading in the follow up link regarding about:config. Maybe something in there to pursue?