Making Gmail Your Default Email Program on Windows and Mac

What it means to set Gmail as your default email

Setting Gmail as your default email means that when you click an email link on a website or in a document, Gmail opens automatically instead of whatever email program you currently use. This is a system-level setting, not something you change inside Gmail itself — you tell your computer's operating system to use Gmail whenever an email action is triggered.

The process differs between Windows and Mac, and the exact steps depend on which browser you use to access Gmail. If you use Gmail through a web browser (which most people do), your browser needs to know that Gmail is your default handler for email links.

Key Takeaways

Gmail as a default email program works through your web browser, so you must use a browser like Chrome, Firefox, Safari, or Edge to set it up.
On Windows, you change the default through Settings > Apps > Default apps, then search for mailto and select your browser as the handler.
On Mac, you change the default through System Settings > General > Default web browser, then select the browser you use for Gmail.
After setting your browser as the default, Gmail itself must be set as the default email service within that browser.
If you use Gmail offline or through the Gmail app, you may need to set defaults separately in that process.

Setting Gmail as default on Windows

On Windows, you first tell your computer to use your web browser as the default email handler, then tell that browser to use Gmail. Open Settings by pressing the Windows key and typing "Settings," then click the Settings app. Go to Apps in the left menu, then select Default apps.

Scroll down and look for a section labeled "Email" or search for "mailto" in the search box at the top. Click on whatever program is currently listed as your email default — it might say "Mail" or another email program. A menu will appear showing available browsers. Select the browser you use for Gmail (Chrome, Firefox, Safari, or Edge). Your computer will now send all email links to that browser.

Next, open that browser and go to Gmail.com. In the address bar, you should see a small icon or notification asking if you want to set Gmail as your default email handler. Click yes or allow. If you do not see this prompt, you can manually set it: in Chrome, go to Settings > Apps > Default apps and look for an email handler option. In Firefox, go to Preferences > Applications and search for "mailto" in the list.

Setting Gmail as default on Mac

On Mac, open System Settings (or System Preferences on older versions) and click General in the left sidebar. Look for "Default web browser" and click the dropdown menu. Select the browser you use for Gmail — Safari, Chrome, Firefox, or Edge.

Once your browser is set as the default, open that browser and navigate to Gmail.com. Most browsers will show a notification or prompt asking if you want to set Gmail as your default email handler. Click allow or yes. If the prompt does not appear, you can usually trigger it by clicking your profile picture in Gmail and looking for a settings or preferences option related to default email.

What happens after you set Gmail as default

Once Gmail is set as your default, clicking any email link — such as "Contact us" buttons on websites, email addresses in documents, or mailto links in messages — will open Gmail in your browser with a new compose window. The recipient address will already be filled in from the link you clicked.

This setting persists until you change it again. If you later switch to a different email service or want to use a different program, you can return to the same settings and select a new default. The process is the same whether you are switching from Gmail to Outlook, or from any other email service to Gmail.

Troubleshooting when Gmail does not open

If you click an email link and Gmail does not open, the most common cause is that your browser is not set as the default email handler on your operating system. Return to Settings on Windows or System Settings on Mac and verify that your browser is listed as the default for mailto links or email.

A second common issue is that Gmail has not been set as the default within the browser itself. Some browsers require you to confirm this setting each time you use it, or they may reset it if you clear your browser data. If you cleared your cache or cookies recently, you may need to set Gmail as default again. Open Gmail, look for a notification or settings option, and confirm the default again.

If you use multiple browsers, remember that each browser has its own default email setting. Setting Gmail as default in Chrome does not automatically set it in Firefox. You must repeat the process for each browser you use.

Using Gmail offline or through the app

If you use the Gmail app on Windows or Mac instead of the web version, the default email setting may work differently. The Gmail app can be set as a default email handler on both Windows and Mac, but the steps vary slightly. On Windows, search for "Default apps" and look for "Email" — you may see "Gmail" or "Google Gmail" listed as an option if the app is installed. On Mac, some email apps appear in the default browser settings, while others have their own settings within the process.

For most users, using Gmail through a web browser is simpler and more reliable than managing the app as a default handler. If you prefer the app, test the default setting by clicking an email link and confirming that the Gmail app opens rather than your browser.

Frequently Asked Questions

Can I set Gmail as default on my phone?

Yes, but the process differs by phone type. On Android, open Settings > Apps > Default apps, find "Email," and select Gmail. On iPhone, open Settings > Apps > Default Mail App and select Gmail. The steps vary slightly depending on your phone's operating system version.

What if I have multiple Gmail accounts?

Setting Gmail as your default email handler does not specify which account opens — it just opens Gmail. When you click an email link, Gmail will load with whichever account is currently signed in. If you want a specific account to be active, sign out of other accounts or switch to the account you want before clicking email links.

Will this change affect my email notifications?

No. Setting Gmail as your default email handler only affects what happens when you click email links. It does not change how or when you receive notifications from Gmail. Notifications are controlled separately in Gmail settings and your browser notification settings.

Can I undo this and set a different email as default?

Yes. Return to Settings on Windows or System Settings on Mac, find the default email or mailto handler, and select a different browser or email program. You can change your default email handler as many times as you want.

Why does my browser keep asking me to set Gmail as default?

Some browsers ask for confirmation each time you visit Gmail, especially if you have cleared your browser data recently or if your browser settings are configured to reset on exit. This is normal behavior. You can usually find a "Remember this choice" or "Always allow" option in the prompt to stop the repeated asking.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.