16.04 - Ubuntu freezes from online forms

I have Ubuntu 16.04 (Xenial) installed on a laptop from 2014 with 8GB of memory and a quad-core processor (Intel Pentium N3530). Once it a while, it freezes completely (I can't even move the mouse) and I must restart it.

I've recently noticed that it's related to how many tabs I have in Chrome − programs without Internet resources don't seem to impact it. The freezing is especially prone to happening when my changes to a form are being synchronised, eg in Google Docs or Quora. It also seems more impacted by tabs with frequent updates like Facebook.

Is this a problem with my network card or with my memory? I sometimes have system monitor open and the memory might only be at 50% sometimes when the freezing occurs. Sometimes I lose Internet connection while still connected to the network. I'm not sure where to dive deeper − which logs are relevant etc? What would I see there anyway?

I heard about memtest but when running it, the results were going fine until my computer inevitably froze.

I used to have an earlier version of Ubuntu and had hoped that the freezing would stop in 16.04, but I guess not.

Some diagnostics:

kokociel@kokociel-Q2550M:~$ free -h
              total        used        free      shared  buff/cache   available
Mem:           7.7G        2.4G        3.8G        463M        1.5G        4.5G

Swap:          7.9G          0B        7.9G
kokociel@kokociel-Q2550M:~$ swapon -s
Filename                Type        Size    Used    Priority
/dev/sda3                               partition   8264700 0   -1

You have an Intel "Bay Trail" processor that has a bug. The fix is simple.

In terminal...

We edit a startup parameter in GRUB with:

gksudo gedit /etc/default/grub

Find the line that looks like:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

Change it to:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=1"

Then:

sudo update-grub

reboot

Problem fixed!