I ran ccleaner twice recently and it deleted all my Chrome extensions. So now I'm worried to run it.
Ran it today - turned off all the Chrome options - and now it has rearranged all my Chrome bookmarks which were organised neatly. Now I can't find anything.
You can help the bug fixers by supplying more detailed info:
* Operating system: I.e.; Win7, Win8.1, and whether the OS is 32-bit or 64-bit, etc.
* CCleaner version.
* Chrome version. If it's a beta/developer build then you should switch to a stable build to avoid issues. Also temporarily disable extensions to see if the problem stems from using a particular extension.