RetroInbox

Make Yahoo Mail easier to read

Updated October 27, 2026

Short answer

For a quick free fix, zoom the whole page with Ctrl and + (on a Mac ⌘ and +). For more, the RetroInbox extension for Chrome adds a text size setting, makes unread messages stand out, shows the sender's real email address and removes the ads.

Free: zoom in with Chrome

Press Ctrl and + to make everything bigger, Ctrl and - to make it smaller, and Ctrl and 0 to go back. On a Mac use ⌘ instead of Ctrl. Chrome remembers the zoom for Yahoo Mail. The downside is that menus and buttons grow too, so less mail fits on the screen.

With RetroInbox

  • Text size: Small, Normal or Large, for the message list and for the message you open.
  • Unread mail stands out: a colored bar and a light background, so new messages are easy to spot.
  • The sender's real address: shown next to the name in an open message, which helps you notice a fake "bank" or "delivery" email.
  • One inbox: hides the Priority, Offers and Newsletters tabs, so every message is in one list.
  • Fewer interruptions: no ads, and Yahoo's promotional pop-ups are closed with their own "Not now" button.
  • Your language: RetroInbox works in 13 languages, and Chrome's built-in translator can translate Yahoo's menus on your computer.
Yahoo Mail with RetroInbox using large text: unread messages have a purple bar on the left and a light purple background.
Large text, with unread messages highlighted. The names in the picture are made up.

How to turn these on

  1. Install RetroInbox from the install page.
  2. Click the RetroInbox button next to Chrome's address bar. If you don't see it, click the puzzle piece icon and pin RetroInbox.
  3. Under Easier reading, choose the text size and tick the options you want. Yahoo Mail changes right away.
Install RetroInbox for Chrome7 days free, then €5.99 a year. No card needed for the trial.

More guides

How to get the old Yahoo Mail look backClassic and basic Yahoo Mail are gone. What still works.How to remove ads from Yahoo MailThree ways, with what each one costs.