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Thunderbird no longer default email client from Windows Explorer, Outlook
I had to reset my default app settings to resolve an unrelated problem. Thunderbird is set as the default email client for all the protocols I could find, however, it only is launching from “mailto” and calendar weblinks, but when I use windows explorer to send an attachment, it launches an Outlook window instead of Thunderbird.
Since I am a MSO 365 user, I’m stuck having the Outlook software installed. Is there any setting I may be missing?
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2 Replies
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Hello J.C. Hall,
To set Thunderbird mail client as the system-wide default, head to Settings > Apps > Default Apps. Then in the right panel under the Email section, you will need to select the Thunderbird mail client.
Then test if you can use the send to feature in Windows Explorer.
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Thanks John, I did try setting something else other than Thunderbird or Outlook as the default mail client to see what it would do and it ignored everything and in fact it corrupted Outlook and would crash excel when I was using the email link inside excel which is what I do most of the time.
My solution was to edit the registry: [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail] Change Value (which “Was Not Set”) to Mozilla Thunderbird. Everything works now!
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