UserAgent: Mozilla/5.0 (X11; CrOS x86_64 8530.81.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.103 Safari/537.36
Platform: 8530.81.0 (Official Build) stable-channel link

Steps to reproduce the problem:
1. Open several memory hungry apps/extensions like Google Play Music, Mosh, WhatsChrome, Telegram, Inbox, Slack and a few browser tabs
2. Wait until it starts to lag and crash
3. Be forced to reload all apps/extensions/tabs

What is the expected behavior?
The Chromebook should just work.

What went wrong?
I cannot reliably use my Chromebook Pixel 2013 anymore since the update from 52 to 53. This never occured before. It happens on a daily basis now.

Crashed report ID: 6fb2044d00000000

How much crashed? Whole browser

Is it a problem with a plugin? N/A 

Did this work before? Yes Before updating to ChromeOS revision 53.

Chrome version: 53.0.2785.103  Channel: stable
OS Version: 8530.81.0
Flash Version: Shockwave Flash 22.0 r0

I suspect that the device runs out of memory and fails to swap out stuff that isn't needed right now.

I am available for further testing.