Yeah I wasn't clear. You don't have to worry about a ChromeIPass vulnerability. You do still have to worry about other compromised extensions and if they're compromised you're in the exact same situation as with what you linked to. If an extension like Adblock Plus is exploited you are screwed either way. The only difference is that if you remove the keepass extension you remove a chunk of code that could be exploited, but that's not super reassuring to me and I'm fine with LastPass.