It does not happen because of an extension. It happens also in Seamonkey and Flock. I saw this is also reported as a MacOS X bug on the mozilla bug forum. It must be a Gecko engine bug somehow.
It does not happen because of an extension. It happens also in Seamonkey and Flock. I saw this is also reported as a MacOS X bug on the mozilla bug forum. It must be a Gecko engine bug somehow.