I am experiencing this same issue. Prior to version 4.2.4 copy/pasting from Firefox using the embedded tool worked perfectly. Now the same procedure induces a blue hue over all captured screenshots. A workaround is to first paste into Windows Paint then into Paint.NET, but I'm hoping that whatever incompatibility was introduced with this latest patch can be resolved.
Full Page Screenshot Color Distortion
in Troubleshooting & Bug Reports
Posted
I am experiencing this same issue. Prior to version 4.2.4 copy/pasting from Firefox using the embedded tool worked perfectly. Now the same procedure induces a blue hue over all captured screenshots. A workaround is to first paste into Windows Paint then into Paint.NET, but I'm hoping that whatever incompatibility was introduced with this latest patch can be resolved.