Plugins

RemSupp Co-Browsing enables you to interact with the customer's browser in real time without any software download.

Integração de widget com Tabchat. Aceite conversas diretamente de seu site para tabchat.

Emita cobranças via cartão de crédito, boleto bancário e Pix de forma rápida em seu e-commerce.

Disable Pingback method from XML-RPC by simply removing it. This plugin is working with WordPress 4.4

Put a small label next to each post which tells people how long it'd take to read the post, just like in Medium.com.

Announcement's Usage Guide

Remove WP Version Info is a plugin to easily hide your WordPress version information from everyone. Now no one would able to track which wordpress version you are using.

Favorite buttons for WordPress, Shortcodes to save and list favorite posts and pages for each user.

TL;DR - Too Long; Didn't Read provides a small shortcut to mark an abstract.

Add notice, announcements, alerts, etc. on product and cart page of your store.