Version 4.0 is a new, simpler Simple Task Timer. Everything is in one small popup: start a task with one click or with Enter, then pause, reset, mark done, edit or delete it. Only one task runs at a time. You can undo a reset, a done or a delete. The toolbar button shows the time of the running task. A task can have a goal: you get one alert when it reaches the goal, and the timer keeps counting. Alt+W (Option+W on a Mac) opens the popup.

Your tasks from version 3 stay, with their names, times and goals.

The settings page, the task details page, the charts, sync and the alarm sound are removed. The notification permission is now optional: the add-on asks for it only when you set a goal.

A task with a goal now keeps counting after it reaches the goal, and you get a desktop notification when it reaches the goal.

Adds support for Firefox for Android (version 142 and later). No other changes.