What is 'Allow access to file URLs' in Chrome?
If you browse to chrome://extensions, you may notice that you have the option to check 'Allow access to file URLs' underneath of the LastPass extension. This option is mostly for web developers. Checking this option allows LastPass to login and fill forms for local files such as file:///C:/dev/test.html. If you do not develop webpages, turning this option on or off will likely not affect you.