This only happens to my Texags page/tab.
It will now (starting a few days go) suddenly lock up and be completely unresponsive and never recover. I have to kill the tab and open a new one.
Cannot scroll, cannot reload, cannot click anything on the page, etc.
Happens about 2x or 3x per day.
If I simply wait it will eventually have that popup that asks if you want to Wait or Kill the page. But if I click Wait it still never comes back - for hours.