So, I have been using HTML, CSS, Bootstrap and FontAwesome (the last versions). I was using Firefox Web Developer's Editition and everything was fine than I closed my browser with my code saved and a few hours later I opened the same code in the same browser however my font awesome icons was seen as squares.
I tried it with other browsers including Firefox (not-developer editition), Chrome and Edge and I was able to see my icons there. But in this browser the code suddenly stoped working.
Here is my local path for FA; C:\HTML\futuredeneme\fa\css\all.css
Here is my local path for HTML; C:\HTML\futuredeneme\home.html
Here is my link; <link rel="stylesheet" href="fa\css\all.css">
Here is an example of my code:
<ul class="nav navbar-nav justify-content-end text-center">
<li class="nav-item">
<a class="nav-link active" href="#"><i class="fas fa-home fa-lg"></i><br>Anasayfa</a>
</li>
</ul>