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Google announced the end of Chrome’s support for Windows XP, as well as Windows Vista, and Mac OS X 10.6, 10.7, and 10.8, since these platforms are no longer actively supported by Microsoft and Apple. Starting April 2016, Chrome will continue to function on these platforms but will no longer receive updates and security fixes.
However, you can access Picasa without any issues using Firefox and Internet explorer. I would suggest you download and install Mozilla Firefox.
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