Hey, I updated chrome to Version 32.0.1700.76 m (up to date) running Windows 8 and nothing happened, no problems. Seems to affect just Windows 7 or so.

Allright,
this helps, good luck for the troubleshooting, hoping you will find a solution - and thanks for all your efforts...
**TO is one of the best tools ever!**

Ah, ok, it's under review, same issue like here http://tabsoutliner.userecho.com/topic/374370-scroll-not-working-and-unresponsive-after-latest-chrome-update/

I have to add some more details about the incident: The updates were pending until yesterday, I postponed to reboot a few days, but suddenly the computer couldn't wake up from standby - so I had to shut down by the power button (down some seconds). And after the restart the problem comes up, new reboots didn't help.
Thank you for your quick support above again. Sorry for my misinterpreted first version. 

But on the Windows7system TO crashs too fast and why??
dg

All right, I've some news. My tree is still there, but I just couldn't scroll up, so I thought it's because everything is gone. Using the keyboard I can scroll and check my whole tree, nothing lost, Puhh... But! After a few seconds TO crashs (dialog window: close or wait) - always! Waiting doesn't help. After closing I have to enable the extension again, but same thing after a few seconds, repeatable...

It's on a Windows 7 system, I discovered a long list of recent Windows Updates, all dated of the 12th January (under settings/programs). 
The other computer is running Windows 8, everything is fine there, I don't know why not yesterday, maybe I was just confused. I have some html backups of my trees, but outdated. Now I will make a fresh backup. 

just saw your answer- thanks for your quick reply, will check your hints later, am so tired, have to have a nap first. You gave me new hope...until very soon, keep you posted

A win update caused a crash. But nor chrome nor TO were offering a recover of my open tabs, and now TO only shows the new tabs (1-2 instead of over 1000) and crashs (only the TO tab) all the time. On other computers/devices the lists are gone too (different ones), there are any lists removed, but on the other device TO doesn't crash, so that I can write here (link opened from the ! link inside TO)...

after a recent windows update