There are 5 repositories under gmail-extension topic.
Chrome extension for creating custom Smart Replies in Gmail
An open-source chrome extension to organize your Gmail labels as tabs.
This is an extension for prevalidation before sending emails.
Send email in magento 1.x using your GMail or Google SMTP server
Check if you are a participant of a conversation in Gmail. Helps you stop sending emails with the wrong address.
Mark all gmails read in a few clicks.
Allows you to select and copy text from "confidential" emails in gmail. Security by idiocy.
Chrome extension - Inserts signatures into Gmail emails from a remote server