A powerful web extension for stopwatch and countdown timer where it will alert users with the timer tone when the countdown reaches.
DE Timer is available to install from Firefox Browser Add-ons and for download from this page. It has 149 active users The latest version is 0.2.1, and it was published 2 years ago.
Install from Firefox Browser Add-onsTotal download count: 0
All available versions
You can find the current and older versions of DE Timer here. You can download the archived versions or inspect their source codes.
As a free user, you can only download the latest version.
Upgrade to download older versions
1 version available for download. Install XPI file
- Simply drag-and-drop the XPI into Firefox to install the add-on.
Install ZIP file
- Download the DE Timer ZIP file
- In Firefox browser, go to
about:addons
to open Add-ons Manager - Click on , then select Install Add-on From File
- Select the DE Timer ZIP file from step 1. DE Timer is now installed on your browser.