Prior to 2/23/18 inserting pictures into the email text worked fine, even animated gif files. Today is 3/21/18 and I have been trying to get this to work for a number of days. I even downloaded prior revs of TB and got the same result. I am able to insert a photo into the email text and it appears just fine. When I send it, nothing arrives except any text I entered, or if I opted to type in alternate text. I tried to check and uncheck the "Attach this image to the message" box and got neither the embedded image or the attachment. If I manually attach the file (photo), then the email is received with the correct attachment, but this does not solve my problem. If I receive an email that has a photo inserted into the text area, I can see the photo just fine so it appears that there is no problem with incoming emails. However, if I try to forward or reply to this email, the photo disappears upon receipt. I edited the config editor and set mail.compose.attach_http_images to*true* and that had no effect. Also, when I check my sent folder, there are no pictures in the text. I have the "Compose messages in HTML" checked in my account settings/composition & addressing. Also noticed when I send an email and I change the font from my default (Tahoma medium) to something else, the text font reverts to the TB default (not even my defaults) in my sent folder and in the email that is received. This may be connected.