Open your inbox and all you see is a list of sender names. Which emails are from companies? Which are personal? Which are official government notices? It's hard to tell at a glance. Email Sender Info adds a small icon next to every sender, turning your inbox into something you can scan instantly — like Caller ID, but for email. ■ What it shows 🏢 Company & service mail Displays the brand favicon of the sender's domain. Mail from tesla.com gets the Tesla logo; mail from github.com gets the GitHub icon. You can tell which company or service an email came from without opening it. 👤 Personal mail Recognizes about 4,800 free and consumer email providers — Gmail, Outlook, Yahoo, iCloud, Proton, Naver, Daum, Kakao, Nate, and more — and adds a small "person" badge alongside the favicon. Company mail and personal accounts become instantly distinguishable. 🇰🇷 Republic of Korea government mail Mail from korea.kr, go.kr, and mil.kr domains shows the official Government of the Republic of Korea emblem, making official government mail easy to recognize — which also helps spot messages impersonating public institutions. 🇺🇸 United States government mail Mail from .gov and .mil domains gets a US government badge. ■ Supported mail services Works in both the inbox list and the open-message view. · Gmail · Outlook (outlook.com / office.com / office365.com) · iCloud Mail · Yahoo Mail · Naver Mail · Daum Mail · Kakao Mail · Nate Mail ■ Who it's for · Anyone who receives dozens of emails a day and needs to triage fast · Professionals and freelancers juggling work and personal mail · People who get government and institutional mail and want to catch impersonation attempts · Anyone who wants a cleaner, more readable inbox ■ Privacy Email Sender Info does not collect your data. · It does not read email bodies, attachments, or recipient lists — only the sender name and address already shown on screen. · No third-party analytics, no tracking, no remote server. · Favicons are fetched from Google's public favicon service; nothing else is sent anywhere. ■ How to use Just install and open a supported mail service. No setup, no login — sender icons appear automatically.

박정섭

Published Firefox add-ons:

Auth Autofill

Email Sender Info