I have experienced the Opera on a small number of platforms previously counting Windows, Linux as well as Mac. Each and every one of them shares the identical configuration, passwords. Mac version is the barely one that works similar to crap. After few hours of usage the browser becomes completely unusable in any way using more than 2GB memory. It eats all the memory. It doesn't actually matter how lots of tabs i have opened. I have noticed the same problem in earlier version of Mac OS but now there is nothing changed in Lion also.
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