LastPass is seriously crippled in Firefox compared to Chrome. The latest version of LastPass in the latest version of Firefox Quantum, can't even display the pop up window in the extension, to let you log in. Add to that the fact that the option to copy the username and password miss from the menu when you select a site from the extension search (which works just fine in Chrome). Add to that the fact that even though the extension gets updated once every one to two months, none of these problem, existing from about a year now, have been fixed. LastPass is the only reason making me want to switch back to Chrome all the time. Just Fix It FFS!