On 28.11.2013 16:15, Honza Bambas wrote:
On 11/28/2013 12:56 PM, David Rajchenbach-Teller wrote:
As many of you know, Session Restore is something of a performance hog,
for many reasons – we have reports of. One of the reasons is that we
store so very many things in sessionstore.js and sometimes keep stuff
for a very long time.

As part of bug 943352 & followup, we are considering automatically
cleanup some of the contents of sessionstore.js. Since people have
mentioned "webcompat" and "userdata loss" in the context of
sessionstore.js, I'd appreciate some feedback before we proceed.

So, here are a few things that I believe we could cleanup:
1. get rid of closed windows after a while;
Definitely, also from a privacy POV.

The closed tabs' and windows' URLs and visit date and time are easily accessible from your browsing history. I don't see how arbitrarily removing them from the closed tabs/windows lists would improve privacy.
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