just found out after installing the new 3.0/64 version, clearing Chrome cookies with it clears LastPass credentials. Never happened before. I reported that on lp forums too.
No need to mention that clearing cookies from Chrome native cleaning utility doesn't bring that problem. Must have something to do with persistent storage.
Also, cleaning Chrome more generally with this version of CCleaner (ie cache, session etc...) makes Chrome behave strangely the next time you start it, like it takes two or three reloads of the homepage before extensions like blockers get loaded.
okay after a reply from LP developer, I could verify and confirm that cleaning Chrome cookies from CCleaner 3.0 modifies the html5 database in such a way that the email address entered in LP dialog to login gets lost. CCleaner shows on top of cookies a supposed to be Okb cookie file...not sure what that is. Anyway I've been also told that the LP guys are ready to work with the ccleaner team to solve the issue:
okay I'm not testing this again, as for the second time, on top of impacting lastpass behavior, it does also impact the behavior of another extension that relies on the HTML5 db, i.e. notscript, and even re-installing it does't bring back the normal behavior, first page displayed in a chrome session must be reloaded several times until notscript gets detected, and the only way out is create a new profile. Already happened yesterday; seems like CC 3 is breaking the profile somehow. That's not good. I'll stop using CCleaner until this gets solved.