Sumer
Sum durations
Sumer is available to install from Firefox Browser Add-ons and for download from this page. The latest version is 1.6, 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 Sumer 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
versions available for download.
How to install Sumer from an XPI file
- Simply drag-and-drop the XPI into Firefox to install the add-on.
How to install Sumer from a ZIP file
- Download the Sumer 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 Sumer ZIP file from step 1. Sumer is now installed on your browser.