When it works it's relatively good, though lacking in features compared to the full-fledged mobile or desktop apps (eg. no ability to configure profiles such as "stealth"). Unfortunately it very frequently fails to connect, or will say it's connected but you can't actually load any web pages. Sometimes the extension itself will even say that it is having trouble connecting and needs to be reinstalled which does work...until the same problem happens all over again. If it weren't for the reliability issues it would be an easy 4-star extension, with the 5th star being reserved for feature-parity with the mobile and desktop apps.