Measure power usage of website frontend features within a web browser

Mozilla Firefox

Currently only Mozilla Firefox supports capturing power usage using Windows 11 and Intel CPUs.

The extension allows:

to measure the ecoIndex of a web site as defined by the ecoindex web site
to verify the application of web eco-design best practices defined by the "Collectif numérique responsable": https://collectif.greenit.fr/ecoconception-web/

It operates in your browser, taking user’s context into account (IP address, installed browser plugins, cache, session cookies…).

Measure the energy consumption of user journeys on real end user devices.