How to Set up Gmail as Your Default Email in Firefox

It's easy to change your Firefox default email

Many websites display their contact email addresses as mailto: links, causing your default mail client or web-based email service to launch when you click the link. If you use Firefox with a Gmail account, modify the browser settings to automatically go to Gmail when you select a mailto: link.

These instructions apply to the Firefox web browser on Windows and macOS operating systems.

Set up Gmail as Your Default Email in Firefox for macOS

Change the settings in Firefox to make Gmail the default for mailto: links.

  1. Select the main menu button, represented by three horizontal lines, and located in the upper-right corner of the browser window.

    Firefox with the More menu highlighted
  2. Select Preferences.

    You can also enter about:preferences in the Firefox address bar instead of clicking this menu item.

    Firefox with the Preferences option highlighted
  3. Go to the General tab.

    The Firefox settings with the General heading highlighted
  4. In the Applications section, select the Mailto drop-down menu, and choose Use Gmail.

    The Firefox Applications settings with Use Gmail highlighted
  5. Close the Preferences tab to return to your browsing session. Gmail is now your default email client in Firefox.

Set up Gmail as Your Default Email in Firefox for Windows

Setting Gmail to your default in Windows differs slightly.

  1. Select the main menu button, represented by three horizontal lines located in the upper-right corner of the browser window.

    Firefox with the More menu highlighted
  2. Select Options.

    You can also enter about:preferences in the Firefox address bar instead of clicking this menu item.

    Options in Firefox for Windows
  3. In the General Preferences, scroll down to the Applications section, and select the mailto option in the Content Type column to highlight its corresponding row.

    The mailto item in Firefox settings
  4. Select the drop-down menu in the Action column. Choose Use Gmail from the list of options.

    The Use Gmail option
  5. Close the Preferences tab to return to your browsing session. Gmail is now your default email client in Firefox.

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