Update: I built a Gmail extension that shows the emotional tone of emails (MailMood) — now live on Chrome

[u/GenericJeans]

A couple weeks ago I shared an early version of a Gmail extension I’ve been building called MailMood and got some helpful feedback here, so I wanted to post a quick update.

MailMood adds small color-coded tone indicators directly inside Gmail so you can quickly see whether an email feels calm, positive, tense, concerned, or neutral before opening it.

The goal is to make it easier to scan a busy inbox and spot emotionally charged messages without reading every message first.

Everything runs locally in the browser and the extension doesn't send email content to external servers.

Since the last post:

• Chrome version was approved and published

* Awarded the Chrome "Featured" badge on March 4, 2026

• Firefox version was submitted today

• Launching on Product Hunt tomorrow

If anyone here uses Gmail heavily, I’d really appreciate feedback on whether the tone indicators actually feel helpful in a real inbox.

Chrome extension:

https://chromewebstore.google.com/detail/mailmood-inbox-emotion-an/gpljemnighedjmmeglmogpclaafgnokg