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Yahoo Mail is not an option in mailto settings

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If I click on any "mailto" link the only options are Gmail or Firefox.

If I go into Settings and choose applications then content type: mailto the same options are there- nothing for Yahoo Mail.

It used to be there, now it has gone.

Using version 110.0.1

Is there any way to manually add Yahoo mail to Firefox?

If I click on any "mailto" link the only options are Gmail or Firefox. If I go into Settings and choose applications then content type: mailto the same options are there- nothing for Yahoo Mail. It used to be there, now it has gone. Using version 110.0.1 Is there any way to manually add Yahoo mail to Firefox?

All Replies (3)

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There seems to be no simple way to add an email provider not recognised by the browser. You could look at the thread linked below.

https://support.mozilla.org/en-US/questions/1305068

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Here are a few options:

Option 1: Install a Yahoo! add-on

Yahoo has several add-ons and I don't know which one has the best balance of useful versus annoying features.

https://addons.mozilla.org/firefox/user/1947/


Option 2: Run a Browser Console Script

One way to add a new mailto destination, also called a URI handler, without installing an add-on, is to run a script in Firefox's Browser Console, one of the developer tools. This requires a settings change to switch the console from read only to read/write. Because scripts run in the console can use interfaces that are totally illegal for web pages to use, you definitely need to be very careful about what scripts you run so that you don't infect your browser.

I posted the script here: https://gist.github.com/jscher2000/8a9112b1c03af77f6b3b63b1296bd864


Option 3: Manual Settings File Edit

The "mailto" handling options are stored in a file named handlers.json in your currently active Firefox profile folder. This file is a huge continuous line of text, so it's a bit annoying to edit. If you want to try it:

(1) Open your profile folder

You can open your current Firefox settings (AKA Firefox profile) folder using either

  • "3-bar" menu button > Help > More Troubleshooting Information
  • (menu bar) Help > More Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

In the first table on the page, find the Profile Folder row and click the "Open Folder" button. This should launch Windows' File Explorer listing the contents of your current profile folder.

Without closing that window, switch back to Firefox.

(2) Exit Firefox

Use menu > Exit and pause for 5-15 seconds while Firefox cleans up and closes files in the profile folder.

(3) Make a backup copy of handlers.json

Right-click the handlers.json file and click Copy. Then right-click a blank area of the window and click Paste. Windows should add a file named along these lines:

handlers - Copy.json

(4) Edit handlers.json

Right-click handlers.json and choose either Edit or Open With. The goal is to use a simple text editor and not a word processor that might corrupt the file with formatting codes. WordPad might work, or you can use a third party editor like Notepad++ or Visual Studio Code (but these are hard to justify if you don't plan to edit code files).

Look for this text:

{"name":"Gmail","uriTemplate":"https://mail.google.com/mail/?extsrc=mailto&url=%s"}

After that, add a comma and then

{"name":"Yahoo! Mail","uriTemplate":"https://compose.mail.yahoo.com/?to=%s"}

Save the change, making sure to keep a plain text format if your editor suggests changing the format.


After any of these changes:

Yahoo! Mail should now be an option on the Settings page, in the Applications box for the mailto protocol. The steps in this article will get you to that setting: Change the program used to open email links.

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