[Bug] Registering links do not work.
For example, I would like to register the mailto link to to go Gmail. However, when you click on the gmail instructions to register the link, it does nothing.
I have the same problem. I would like to register Gmail/Vivaldi as the handler for mailto: At the moment, I have an application that will only provide an E-mail address by sending a mailto: link to the default mail application. So, I'll have to switch to a different Web browser to get the E-mail address out of this desktop application.