v4.0.2

• Disable the addon for Thunderbird 91, as support for the header is now included in Thunderbird itself (#12)

v4.0.1

• fixed Thunderbird stopping to respond if an eml file with an invalid format is opened (#10)
• fixed add-on sometimes not working at start (#9)

v4.0.0

• now requires at least Thunderbird 78
• fixed incompatibility with Thunderbird 78 (#7)

v3.0.0

• now requires at least Thunderbird 68
• fixed incompatibility with Thunderbird 68

v2.0.0

• now requires at least Thunderbird 52
• fixed incompatibility with Thunderbird 60 (#4)

v1.1.1

• fix error if From header does not exist
• fixed incompatibility with Thunderbird 52

v1.1.0

• use the from address to select the sending identity (#1)
• now also works with line endings other than CRLF (#1)

v1.0.1

• changed composition type from Draft to Template (can be changed by the "extensions.xUnsent_support.default.msgCompType" preference)
• only handle file flag if .eml file contains "X-Unsent: 1"

v1.0.0

Now works also without an open window.

v1.0.0pre1

Initial release.
At the moment it only works if a window of Thunderbird is already open.