Outlook.com mailto

Name: Outlook.com mailto
Rating: 4.6364 (22 reviews)
Author: Wesley Branton

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

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The Outlook.com mailto Chrome extension allows users to configure their browser to open all mailto links directly with Outlook.com. Once installed, mailto links on any website will automatically open the Outlook.com interface and prefill the relevant email fields, providing a seamless email experience. This extension is unofficial and is not affiliated with Microsoft. It offers a straightforward solution for users preferring Outlook.com as their default email handler without changing system-wide settings.

Designed to enhance productivity and streamline email management, this extension modifies browser settings to redirect mailto links to Outlook.com with just a click. For more details about the permissions it requires, users can consult the provided documentation link.

Productivity Communication

By:

Daily users:

Rating:

Version:

2.7.1 Last updated: 2023-06-22

Version code:

5584126

Creation date:

2019-05-26

Risk:

Permissions:

storage
menus
tabs
webRequest
webRequestBlocking
*://outlook.com/send/*

Size:

49.72K

Email:

ad*****@wesleybranton.com

URLs:

Website ,Privacy policy

Full description:

See detailed description ⏷

Source:

Firefox Browser Add-ons

Updated:

a day ago

Ranking

# 2,219 ▼ 3

Other rankings

#257 in Social & Communication ▼ 1

#15 in disclaimer keyword 25 ▲ 1

#27 in hotmail keyword 12

#44 in mail keyword 35

#46 in lookup keyword 15 ▼ 1

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User reviews

Users appreciate that this add-on effectively enables Outlook Web as the default mailto handler in Firefox, especially after Firefox removed original mailto support. It generally works well on first try and the developer is responsive. Common issues include the add-on opening new mail tabs rather than focusing existing mailbox tabs, occasional repeated sign-in prompts, and inconsistent initial behavior that may require a browser restart. Additionally, some users are cautious due to Firefox's warning about it not being a recommended extension.

Pros

Allows setting Outlook Web as the default mailto handler in Firefox.
Easy to use and works as described on first try for many users.
Fills a gap left by Firefox removing original mailto account support.
Receives positive feedback for its intended function.
The developer is responsive and makes updates based on user feedback.

Cons

Sometimes opens a new mail tab instead of focusing an already open mailbox tab.
Can require users to sign back in with each mailto click, possibly due to differing Outlook URLs.
May not work consistently for all users or setups initially, occasionally needing a browser restart.
Firefox shows a warning about the extension not being recommended, causing user concern.

Recent reviews

by Firefox user 18907555, 2025-03-27

by Firefox user 17635408, 2025-03-15

by Daniel, 2024-12-15

View all user reviews ›

Extension safety

Risk impact

Outlook.com mailto requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

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

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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