Outlook.com mailto

Outlook.com mailto

Add Outlook.com as a default email provider for all mailto links.

Outlook.com mailto
What is Outlook.com mailto?
Outlook.com mailto is a handy Firefox extension that adds functionality to set Outlook.com as your default email provider for all mailto links. Links on websites will automatically open the Outlook.com interface and prefill the information, providing a streamlined emailing experience. Please note that this extension is unofficial and not affiliated with Microsoft.
Users: 1,815 ▲ 63
Rating: 4.63 (19)
Version: 2.7.1 (Last updated: 2023-06-22)
Creation date: 2019-05-26
Weekly download count: 36
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • storage
  • menus
  • tabs
  • webRequest
  • webRequestBlocking
  • *://outlook.com/send/*
Size: 49.72K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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This browser extension will add the option in the Firefox application settings to set the default email provider for mailto links to Outlook.com. Mailto links on websites will automatically open the Outlook.com interface and prefill the information.

DISCLAIMER: This browser extension is unofficial and is not affiliated with Microsoft.

Click here to see why this extension requires certain permissions.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Easy to set Outlook Web as default mailto handler
  • Works as described
  • Developer is responsive to feedback
  • Doesn't always work consistently
  • Could have better integration with existing mailbox tabs
  • Sometimes requests sign in each time a mailto link is clicked
Most mentioned
  • Issues with it not working consistently
  • Happy to have found this extension after Firefox removed original mailto accounts
  • Desire for the add-on to use existing mailbox tabs
Recent reviews
Great idea but has only worked once so far so maybe Microsoft is blocking it? Nice when it worked!
by Timat, 2023-08-10
View all user reviews
Risk impact

Outlook.com mailto is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Outlook.com mailto if you trust the publisher.

Risk likelihood

Outlook.com mailto has earned a fairly good reputation and likely can be trusted.

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