Excellent suite of apps and extensions. Works well on Firefox, Android and Chrome. Start by installing desktop application to import and delete passwords saved by browsers, operating system, etc. Then spend a bit of time checking your vault for duplicates, blank entries, out-of-date information, etc, and sorting the remaining passwords into categories. Run Security Challenge to check for weak or re-used passwords and change any passwords that need changing. Then install on browsers and your phone and it should all go smoothly. It auto-fills username and password on most websites without prompting, some need you to click on the drop down list and in a very few cases you need to copy and paste password from vault.