Rated 3 out of 5 stars

Does what it's supposed to do.

@ Bolobok : "All it does is add MarketWatch to the list of search engines. Why not just bookmark the web site? Pretty useless."

What was you expecting exactly ? Bookmarking the site get one more step to get the information needed about stocks price evolution. Also, you could bookmark all the others search engine, not the same to have them in you search engine list.

Anyway, there is another interesting add-on about stock market, "Equity Pilot", although its privacy policy is kind of... discouraging.