Altogether it looks like LastPass is a lot better at PR than they are at security. Yes, that’s harsh but this is what I’ve seen so far. In particular, security vulnerabilities have been addressed punctually, only the exact scenario reported has been tested by the developers. This time LastPass has driven it to an extreme by fixing a critical bug in their Chrome extension and announcing the fix even though the exact same exploit was working against their Firefox extension as well. But also with the bugs I reported previously nobody seemed to have an interest in going through the code base looking for other instances of the same issue, let alone taking obvious measures to harden the code against similar attacks or reconsidering the overall approach.
Or what I call: Security through Self-Confidence.