Pictures in forum post disappeared?

[JanDoggen 1]

My post

 

https://discussion.evernote.com/topic/87844-change-the-behavior-of-the-top-tagging-icon/

 

on this forum had 4 pictures.

 

I come back several weeks latyer and they are gone?

 

I'm trying to reload one from imgur into this post again and it also does not work

 

 

URL is https://i.imgur.com/xYR7Zpa.png

 

 

[jbenson2 2,146]

When I go to the URL, I can see an image underneath each comment

 

Situation 1,

 

Situation 2

 

Situation 3:

 

Request 3: 

 

 

example: under Situation1, is this image:

[gazumped 9,811]

OK - confusion: I'm still seeing the pictures in the post.  Do you have a slow connection??

[JanDoggen 1]

Ah, I notice what is going on - an exclamation mark in the FireFox address bar:

 

It's Firefox blocking the content. The warning says: either it's mixed mode content or the encryption is not strong enough.

 

The links were http: and the forum is https: which originally made me suspect that it was mixed mode content blocking.

 

However:

 

- that has been present since version 23 and I wrote the question using version 39 or 40.

- If I go into BBCode edit mode I can change the the Imgur links from http to https, but nothing changes.

- Changing "security.mixed_content.block_active_content" to "false" in about:config (and restarting) does not work either (something I'm not actually comfortable with, so I'm setting it back now).

 

I can see the pictures perfectly fine on imgur itself, and it now turns out that I can see them in Internet Explorer as well.

 

That leaves the "encryption not strong enough" option. Indeed, FireFox has become much stricter in recent versions.

Looking at the certificate I see encryption method PKCS #1 SHA-256 with RSA-encryption, but I can not find any information about what certificates FF started blocking recently (i.e. what the current requirements are).

 

(Additional note) I have also followed most tips in this post regarding SSL and TLS , but without success.