Install gnome-do-plugins by entering the following commands in the terminal:
sudo apt update sudo apt install gnome-do-plugins
Description:
Extra functionality for GNOME Do
This package provides extra plugins for GNOME Do. It includes plugins for interacting with GMail & Thunderbird contacts, Pidgin IM buddies, searching the Web using Firefox search plugins, and more.
Homepage: http://do.cooperteam.net
Version: 0.8.5-4ubuntu1
Section: universe/gnome