Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How to make "mailto" default to Microsoft Outlook (https://outlook.live.com/owa/) through Firefox browser in Windows 11.

  • 2 cavab
  • 1 has this problem
  • 1 view
  • Last reply by gomurchu

more options

I have a new PC with Windows 11. Setting default programs in 11 is very complicated. My email client is Microsoft Outlook (https://outlook.live.com/owa/), which is accessed through the Firefox browser. When I get an email with an email link it defaults to "mailto", which defaults to the Windows Mail app, which I do not use. How can I make "mailto" default to Microsoft Outlook (https://outlook.live.com/owa/) running through Firefox?

Thanks, Jerry

I have a new PC with Windows 11. Setting default programs in 11 is very complicated. My email client is Microsoft Outlook (https://outlook.live.com/owa/), which is accessed through the Firefox browser. When I get an email with an email link it defaults to "mailto", which defaults to the Windows Mail app, which I do not use. How can I make "mailto" default to Microsoft Outlook (https://outlook.live.com/owa/) running through Firefox? Thanks, Jerry

All Replies (2)

more options

If Settings isn't doing what you want, you could try this. https://support.mozilla.org/en-US/questions/1305068#answer-1351231

more options

I noticed a little blue circle with an "i" in it in the upper left corner of the Outlook screen. When I clicked the circle it disappeared, but a line of text had said something like, "Click to add Outlook to the options for "mailto" in Settings." After the circle disappeared, I went to Settings, default apps and found the last option was Outlook!