I did a search on here and do not see this problem mentioned anywhere.
When I paste a screenshot into GMail in Firefox and send it, the recipient receives a bunch of letters and numbers instead of the image in GMail, and in Outlook they receive a red X.
In Explorer, it doesn't let me paste the image at all, "Your image could not be inserted because there was a problem uploading it."
In works fine in Chrome.
Hello, I confirm this bug on Greenshot 1.1.7 Build 17 (64bit).
But I think, this is not a Greenshot bug, this is a firefox bug.
I accidentally changed the status of this issue. Sorry for that!