I actually use the web-based version of Google Tasks via a browser extension; but apparently, I am one of the few… This news does not mean “Google Tasks” is going completely away. It will still be available via the Google Calendar, Gmail and Mobile version interfaces. The current web-based version is sort of dated and here is to hoping that Google comes up with a more modern standalone version.
Google is shutting down the classic Google Tasks web interface – gHacks Tech News
Google informs users who open Google Tasks using a web browser that the classic version is going away.