Recently browser autofill shortcut stopped working. Today I figured out how to get it work again.
On Chrome open
chrome://extensions/shortcuts on your browser and fill the shortcut yourself.
If you use Edge browser then open
edge://extensions/shortcuts and fill the shortcut yourself.
If you use Firefox then go to
about:addons → Extensions → from the settings icon you can get to manage extension shortcuts.
It is very convenient to autofill logins with
ctrl + shift + L. If you have multiple accounts on some webservices (for example you have several Twitter accounts) then you can rotate between these by repeating the shortcut.