how can I activate your marvelous chrome extension to modify a google spreadsheet plz?
Google spreadsheet has its own Speech Recognition tool. I would recommend use it instead of Handsfree for Web. Sadly Google's web applications are made in a nonstandard way.
Handsfree for Web has hundreds of voice commands for regular websites that follow the standards, complex web apps will require special voice commands implemented exclusively for these websites.
Thanks for playing with the extension,