If I compose a new email, or reply to or forward a new email, I can't copy and paste my email signature into the message, as I have always done? The text goes in OK but the small jpeg pictures and their web hyperlinks are not included? My signature is copied and pasted from a MS word doc (MS Office 365) or PDF. I do it this way because the optional insert signature has never worked OK for me? I can however find an old email with the signature already included, in the sent folder, and forward it on with no issues? IE find an old email with the signature already included, then delete everything (subject, to, cc, bcc, email body, attachments etc) apart from the copy & pasted signature and use it like a template to compose a new email... a pain in the proverbial; also this does not work for replies and forwards... Am using Thunderbird 31.6.0 Solutions from searching the forum that have not helped: Display attachments inline is ticked. Message body as original HTML. Work offline is not ticked. Norton 360 is the virus/firewall I use but I assume that this is not part of the issue, as I can resend an old copy with the signature already included?