Auto Reset Timer от legendarykanary

The Firefox Timer Extension is a lightweight countdown timer that automatically resets after reaching zero. It provides an easy-to-use popup interface, badge updates in the toolbar, and hotkey support for quick controls.

Features:

Set a custom countdown timer in seconds.
Auto-resets when the timer reaches zero.
Displays remaining time in the toolbar badge.
Plays a notification sound when time expires.
Popup UI with start/pause, reset, and volume control.
Customizable hotkeys for quick control.


Instructions
Pinning the Extension for Toolbar Badge Visibility

To see the countdown timer in the toolbar:

Click the Extensions icon (puzzle piece) in the Firefox toolbar.
Find the Firefox Timer Extension in the list.
Click the Pin icon next to it.


The badge will now display the remaining time during countdowns.
Customizing Hotkeys

To configure or change the hotkeys for starting, pausing, and resetting the timer:

Open Firefox Menu (☰) and go to Add-ons and Themes (about:addons).
Click the Extensions tab.
Find the Firefox Timer Extension and click the gear icon ⚙️.
Select Manage Extension Shortcuts.
Assign or modify the shortcuts as needed.


If no hotkeys are set, the extension defaults to:

Start/Pause Timer: Alt + Shift + S
Reset Timer: Alt + Shift + R