Install unity-scope-firefoxbookmarks by entering the following commands in the terminal:
sudo apt update sudo apt install unity-scope-firefoxbookmarks
Description:
Firefox bookmarks scope for Unity
This package contains the "firefoxbookmarks" scope which allows Unity to search your Firefox bookmarks.
Homepage: https://launchpad.net/unity-scope-firefoxbookmarks
Version: 0.1+13.10.20130809.1-0ubuntu1
Section: universe/gnome