https://learn.microsoft.com/es-es/dotnet/api/system.windows.forms.commondialog?view=netframework-4.8.1&redirectedfrom=MSDN
CommonDialog Class (System.Windows.Forms) | Microsoft Learn
Specifies the base class used for displaying dialog boxes on the screen.
class systemwindows formsmicrosoftlearn
https://bugzilla.mozilla.org/show_bug.cgi?id=68352
68352 - height of commonDialog.xul does not account for html content line-wrapping
RESOLVED (danm.moz) in Core - XUL. Last updated 2001-05-10.