Thank you for your continued patience. It is true that this bug is is about losing the font when clicking at the end of the line after clicking somewhere else. However, I'd like to consider other occasions where the font is lost, that is after inserting an image by paste.
Let's deal with this "off-topic" issue first: In Firefox, using <div contenteditable> you can paste in an image and then keep typing in the font that was used before the insertion. So as you concluded, TB must be doing something strange here. As for the clicking at the end of the line: In Firefox, again with a <div contenteditable> I created two texts with different fonts, clicking in one, typing in one font, then clicking in the other one, then clicking at the end of the first one again does NOT lose the font. So maybe this is not a Core/Editor bug, maybe it's solely a Thunderbird bug. To answer your question why I was looking in the editor for the click processing: pure ignorance. Of course you can click onto a static document where no editor is involved and the click will be processed. I will follow up on the other issues with the Thunderbird group https://groups.google.com/forum/#!topic/mozilla.dev.apps.thunderbird/1xtQ_nruGcw and keep you posted. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/584632 Title: composer changes font mid email To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/584632/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs