In Safari, go to File > Save As and save the file as a Web Archive to your desktop.Create a new signature by clicking on the plus icon (you can just leave the signature blank for now).In Mail, open Preferences and click on the Signatures icon.Open Mail, and that’s it, your signature is installed.mailsignature file, or you did not copy the file name properly.
If they do not ask you, then you are either not copying a. When they ask you if you want to Replace the file, replace it. mailsignature file by pasting the name of the file in Signatures folder If you click on the Go tab, you will reveal the Library by holding the “option” key on your keyboard down Simply closing the window is not enough, so be sure you Quit the program.