I have special love for favicons and many have send me feedbacks about favicons usage within comments over the network. I find it pretty useful to recognize websites, especially that many have very nice favicons small but well designed. So I thought about getting these icons withing Google Search results and just found Google Icon extension which just answered my question. The extension simply show favicons next to each search result if available, but show also warning for websites that may harm your computer. Simple and neat !
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