Mode "Snapshot" for view pages.

Hi to all!

I search extension which can draw a page and delete the all data from
memory of this page.

What profit of that?
On my browser always opened about a 20 tabs and most tabs was opened
for only looking, not for serfing.
In this case enought load the data of page -> draw on screen and
delete the all page data from memory.
So we get "light" page, without DOM, plugins, etc..
I think this mode will be profit.

I had say not only about extionsion, may be will be good have in the
built-in functionality.


Sorry for poor english. )