Recently my LastPass installation developed a strange bug after update to Firefox 8 Beta - instead of real decoded values it started filling out strange encrypted login data resulting in failing logins. Luckily, I was able to get rid of this problem using the simple trick posted below.
To get rid of this LastPass data corruption issue, you simply need to delete the locally cached copy of LastPass encrypted data and make it download a fresh-one from their servers using the method below.
- Login to your LastPass account.
- Now navigate to LastPass Icon > Tools > Clear Local Cache.
- LastPass will confirm the action, click "yes" or "No" as per your preference.
- Now, logoff and relogin to your lastpass account using the addon and the problem should be solved.