Holiline Reminder Alternatives for Firefox

Todoist is a leading task management and to-do list application designed to help individuals and teams organize their tasks, projects, and goals across various devices. It offers powerful features for capturing, organizing, and completing tasks efficiently.

TickTick is a powerful cross-platform to-do list and task management application designed to help individuals and teams organize tasks, manage time, and track habits effectively. With robust syncing capabilities and integrations, it streamlines productivity across various devices.