Where are located the Pale Moon/Basilisk plug-ins?

My questions are:
1. Where are located the Pale Moon/Basilisk plug-ins? (I think, that it is “C:\Program Files\Pale Moon\browser\plugins”, just correct me if I'm wrong)
2. Will it work, if I drop a symbolic link into the plug-ins folder?
3. Will it work, if I copy the plug-ins DLLs into the plug-ins folder?
4. How can I set the environment variables? Will the MOZ_PLUGIN_PATH variable work?

I'm asking about this software:

1. Yes
2. What do you mean by this? A shortcut?
3. Presumably. I'm not sure if a sync would be required but I doubt so
4. Experiment a bit but considering it is firefox based MOZ_PLUGIN_PATH should work :)

Hopefully it helps despite the lacking depth

2. Will it work, if I drop a symbolic link into the plug-ins folder?

Create one and see if it works. A symlink might need to be a whole folder rather than a single file.

@James

A symlink is a 'hard or soft link' and is not a shortcut.
Let's say you want to put your Edge user/preferences folder on another drive because you don't want to use your SSD or fragment your old HDD where the OS resides, you would enter the command:
mklink /d "%LocalAppData%\Microsoft\Edge" "T:\Edge"
Now the system would 'believe' the folder is still on C: while in reality it is on T: .
Unix/linux users are big fans of symbolic links. It is fairly new to Windows though, compared to Unix.