Open your HTML email signature file in your Chrome web browser.
Press Ctrl + A (Cmd + V for Mac) to select the entire email signature, then press Ctrl + C (Cmd + C for Mac) to copy it.
IMPORTANT: Do not use your mouse to select the area, only use Ctrl + A as you may miss out on grabbing some of the code.
Open Yahoo Mail in your Chrome web browser and click Settings at the top right of your screen. Select More Settings.
From the left sidebar, select Writing Email. You'll see your email address listed under Signature, enable the toggle then click inside of the text field that appears. Press Ctrl + V (Cmd + V for Mac) to paste your copied email signature.
Create professional email signatures that make a lasting impression. Easy to customize, always looks perfect across all email clients.
Yahoo! Mail Email SignaturesClick Back to Inbox and compose a new email. Your email signature will now automatically insert when composing emails in Yahoo Mail from your Chrome browser.
Download and install our macOS Signature Installer App.
Run the app once, then you can Quit using the icon at the bottom left of the app.
Open Safari and from your menu bar select Safari, then Preferences. Go to the Extensions tab and enable Email Signature Rescue.
Once enabled, an ESR icon will appear on your Safari toolbar to the left of your URL address bar. Click the extension icon to expand the extension, then complete the steps to install your email signature.
Select Yahoo Mail from the first drop down box. Enter the email address that you'd like the email signature to apply to. And finally, insert your signature key and click Install.
Your email signature will now automatically insert when composing an email within Yahoo Mail in Safari.