Question: I was wondering if I'll have the option to add something like `\listoffootnotes` in my document like I can use `\listoffigures` or tables...

Anyone knows how?

Answer: 
I wouldn't recommend a `\listoffootnotes` command for this — instead, you should define a new command like `\externallink{...}` which then populates a `\listoflinks` command. Then write

```
\footnote{\externallink{{...}}

```

Or something along those lines. Anyway, to create new "List of..." lists, you can use the tocloft package. Here's an example:

```

\documentclass{article}
\usepackage{tocloft,url}
\newlistof{links}{lks}{List of Links}
\newcommand\externallink[1]{%
  \refstepcounter{links}%
  \footnote{\url{#1}}%
  \addcontentsline{lks}{links}{%
    \protect\numberline{\thelinks}%
    \protect\url{#1}}%
}
\begin{document}
\listoflinks
\section{Start}
Google\externallink{gmail.com}
and Yahoo\externallink{mail.yahoo.com}
and Microsoft\externallink{hotmail.com}
all have webmail.
\end{document}

```

[mindcorrosive](#3603)'s answer is also very sensible.
From your clarification, this is how I would try to do it:

Use two separate bibliographies, with the help of the [`multibib`](https://ctan.org/pkg/multibib?lang=en) package and give each an appropriate name. Set the first one for the books and articles, and the second one for the URLs (that is, your footnotes). See [this question](https://tex.stackexchange.com/questions/3587/how-can-i-use-bibtex-to-cite-a-web-page) on info how to cite URLs. You would have to add footnotes as `\footnote{\cite{}}`.

I don't have enough time for testing this right now, but give this a try, and if it doesn't work, I'll try to edit this with an example later.