​How do I leave comments on YouTube if they are disabled?

You all know that YouTube has a feature to disable comments when posting videos, which, in turn, does not allow users to express their opinion under the video. With the help of an extension for browsers called Lament, this problem can be solved quite easily. 

The extension works on a fairly simple principle, all you need is to install it, log in under your Google account, and then refresh the page, after which a comment section will appear under the video. Thus, you will be able to write whatever you want yourself, as well as see messages from other users. 

Everything is practically the same as with built-in comments, but at the same time, some additional functions like likes and answers are still missing.  

The extension can be downloaded and installed: