Dragging a texture from browser (Firefox) into unity creates corrupted file instead of a texture.

To reproduce:
1. Open up a new project
2. Drag a texture from your browser into unity (projects tab)
3. Notice the randomly named blank file in the project. Notice there is no texture in the project. Notice the error in the console:
Could not create texture from Assets/gumzjaor.bmp: File could not be read
UnityEditorInternal.InternalEditorUtility:ProjectWindowDrag(HierarchyProperty, Boolean)
UnityEditor.DockArea:OnGUI()

Expected: texture is imported.