Why do browsers use so much memory? -

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firefox 18 tabs open = 1.34gb of memory (~75mb/tab).

got reply on twitter local developer mentioning chrome instance using ~82mb/tab.

what causes web browsers consume memory?

to make more crash-resistant, chrome spawn many copies of full-fledged processes instead of using multi-threading. eats more memory (less things can shared). chrome puts plugins in separate processes (so crash of flash won't bring down whole browser)... other memory consumed... , on.


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