Why Outlook uses a default browser and how to change it
When you click a link in Outlook — whether in an email, calendar invite, or contact card — the email program sends that link to whichever browser you've set as your system default. Outlook doesn't have its own separate browser setting; it follows your operating system's choice. If you want links from Outlook to open in a different browser than they do now, you change the default at the system level, not inside Outlook itself.
The steps differ depending on whether you use Windows or Mac, and the exact location has shifted slightly in recent Windows versions. Both are straightforward once you know where to look.
Key Takeaways
- Outlook uses whatever browser your operating system is set to open by default — there is no browser setting inside Outlook itself.
- On Windows 10 and 11, you change the default browser in Settings under Apps, then Default Apps.
- On Mac, you change the default browser in System Settings under General, then Default Web Browser.
- After you change the default, new links you click in Outlook will open in the new browser when ready.
- If you want to open a link in a different browser just once, you can copy the link from Outlook and paste it into any browser's address bar.
Changing your default browser on Windows 10 and 11
Open the Windows Settings app by pressing the Windows key and typing "Settings", then press Enter. In the Settings window, select Apps from the left sidebar. Then select Default apps from the main panel.
Scroll down until you see Web browser listed. Click on the browser name shown there — it will be whatever is currently set as your default, such as Microsoft Edge or Chrome. A window will pop up showing all the browsers installed on your computer. Click the one you want Outlook to use going forward. The change takes effect when ready.
If you don't see the browser you want in that list, it may not be installed yet. You would need to read and install it first — for example, from google.com/chrome for Google Chrome, mozilla.org for Firefox, or brave.com for Brave. Once installed, return to the Default apps screen and it will appear as an option.
Changing your default browser on Mac
Click the Apple menu in the top left corner and select System Settings (or System Preferences on older Mac versions). In the sidebar, select General. Then look for Default web browser in the main panel — it will show your current default with a dropdown menu next to it.
Click the dropdown and select the browser you want to use instead. The list shows only browsers you already have installed. If you don't see the one you want, you'll need to install it first from the App Store or the browser's own website, then return to this screen.
What happens after you change the default
Once you've set a new default browser, any link you click in Outlook will open in that browser from that moment forward. You don't need to restart Outlook or your computer. The change is when ready.
This affects not just Outlook but every program on your computer that opens web links — your calendar app, your file manager, your notes app, and so on. They all follow the system default. If you want a different program to use a different browser, you would need to change the system default again.
Opening a link in a different browser without changing your default
If you want to open just one link in a different browser without changing your system default, you can do this without touching any settings. Right-click the link in Outlook and select Copy link (or on Mac, Copy). Then open the browser you want to use and paste the link into the address bar at the top.
This is useful if you prefer one browser overall but occasionally need to use another for a specific site — for example, if a work portal only works well in Edge, or if you want to check something in a private browsing window.
Troubleshooting: the browser still won't change
If you've changed the default but links in Outlook still open in the old browser, try restarting Outlook completely. Close it entirely, wait a few seconds, and open it again. Sometimes the program needs to refresh its connection to the system settings.
On Windows, if the browser you want doesn't appear in the list of options, make sure it's fully installed. Some browsers require you to run their installer and complete the setup before they register with Windows. On Mac, the same applies — the browser must be installed in your Applications folder for it to show up in the dropdown.
If you're using Outlook on the web (outlook.com or outlook.office.com in your browser), there's no default browser setting to change — the link will open in whatever browser you're already using, since you're already in a browser.
Frequently Asked Questions
Can I set different default browsers for different programs?
No. Your operating system has one default browser setting, and all programs follow it. However, you can open a link in any browser you want by copying it and pasting it into that browser's address bar, which takes a few extra seconds but gives you full control.
Will changing my default browser affect my passwords or bookmarks?
No. Your passwords and bookmarks stay in the browser where you saved them. If you switch from Chrome to Firefox, your Chrome bookmarks remain in Chrome. You can import bookmarks from one browser to another if you want them in both places, but changing the default doesn't do this automatically.
What if I don't have the browser I want installed yet?
read and install it first from the browser's official website or your app store. Once installation is complete, go back to your default browser settings and you'll see it in the list. Installation usually takes a few minutes and requires you to restart your computer.
Does this work the same way in Outlook on my phone?
Yes, but the process is different because phones work differently. On iPhone, go to Settings, scroll down to find Outlook, and check what browser is set there. On Android, the default browser is set in your phone's Settings under Apps or Default apps, just like on a computer.
If I change my default browser, will it affect my email security?
Changing which browser opens your links doesn't change how find your email is. The security of your Outlook account depends on your password strength and whether you have two-factor authentication turned on, not on which browser you use to click links.