Windows 10: Need filepath to set Wndows Mail App as mailto helper in Firefox

I want to set the Windows Mail app as the mailto helper in Firefox. I can open the App but I can't find its location. Unlike everything else it doesn't seem to ever have an Open Enclosing Folder option.

:)

 

Mailto: in Browsers not working

No, if you ever installed Windows Essentials (as I once had) you'd have had Windows Live Mail added to the list of available mail apps.

I have my Firefox set up in its 'aboutreferences' to open the Yahoo Mail webmail page and compose an email if I click on a mailto link in any page I'm browsing in Firefox. That's an entirely standard feature of Firefox and well documented by Mozilla. You could equally we set Firefox up to use an email client app like Mail or Thunderbird.

What I have shown in post #29 is the registry key needed to make Firefox appear in the list of available Mail Clients, allowing me to set my Firefox/Yahoo webmail as the default for a mailto link anywhere else in Windows, a mailto link in Edge, in a pdf, a Word document, or anything else. I can even open it from the WinKey+R run box by typing something like....
mailto:a_name@some.random.email.address

 

Set Firefox/gmail as my default mail client


Clicking on an mailto link in Excel or Word no longer brings me to Firefox and gmail. I have Windows 10. My default browser is set to Firefox. Website hyperlinks in Excel or Word work fine, taking me to Firefox. Within Firefox the mailto is set to gmail and this works if I am in Firefox.
Under Windows/Control panel/Default apps/email Firefox is not listed as an option.
Any ideas?

 

Mailto: in Browsers not working


Hi, I have installed Pegasus mail, and during the installation, accepted the option to set it as the default mailto client.
I also set it as the default from an Open with prompt.

I can confirm that clicking on email links opens Pegasus, and that the mailto entry as per my screenshot shows Pegasus.

I installed Pegasus at a custom location (in the same folder as Thunderbird's installation folder).

So there appears to be no fundamental conflict with Win 10.

This might suggest some other issue with yours which is affecting mailto. You mentioned you have noticed some other problems- could you list them or suggest any that could possibly be related?