The web rating is not working with the Chrome Broswer. It doesn’t show the green or yellow bars next to the web search.
It works if Firefox
WebRep works fine with Chrome here. Check to see if it’s installed in Chrome.
Additional Protection> Browser Protection. There you will find all browsers you have installed. 
for me its an on/off situation (webrep tooltips sometime show up beside the search results)
it is always working in the extensions icon corner at the top right though.
chrome v18.0.1025.162m