I removed identifying information. The popup appears when I click on the mailto link attached to Jacqueline’s name.
BTW, I first sent this by replying directly to the email you sent and received this error:
We’re sorry, but your email message to [“firstname.lastname@example.org”] (titled Re: [Brave Community] [Support and Troubleshooting/Desktop Support] Mailto links bring up unneeded xdg-open dialog) didn’t work.
None of the destination email addresses are recognized, or the Message-ID header in the email has been modified. Please make sure that you are sending to the correct email address provided by staff.
I don’t know why that didn’t work. All I did was hit Reply in Thunderbird and sent my message.
I’m not sure why “site handlers” apply here. My original message asked how to assign a global Default Application to handle mailto URLs. It’s not site-related at all.
Wish I could see a preview of my message before sending it. I guess the image will appear correctly.