Password on firefox?

Question

Mozilla Firefox

Is there a plugin for ff that puts the browser under a password? That is, it is impossible to use the browser until you enter the password. If yes, please provide a link.

Answer 1

There are two addons with this functionality
https://addons.mozilla.org/en/firefox/addon/startu...
https://addons.mozilla.org/en/firefox/addon/master...

Answer 2

And why a plugin (by the way, then an addition, plugins are different)?
Browser settings -> "protection" tab -> use a master password.