This is an extension that keeps unwanted ads from your web browser.
This is the Last Pass extension. This will keep all of your usernames and passwords for all sites using a username and password and all you have to remember is one password.
Tab Scissors ~ lets you see two tabs in different windows side by side without switching back and forth between the two tabs.
Tab Glue ~ lets you put the two tabs you cut back together in one window rather than two.