Title icons on Firefox

[Ezibenroc]

I have troubles with the title icons on Firefox. Everything is fine on Google Chrome.
The file _includes/title.html is as follow:

<div id="title">
  <h1>
      {% unless site.git == "" %}
          <a id="git-ic" href="{{site.git}}"><i class="fa fa-github"></i></a>
      {% endunless %}

      {% unless site.linkedin == "" %}
        <a id="so-ic" href="{{site.linkedin}}"><i class="fa fa-linkedin"></i></a>
      {% endunless %}

      {% unless site.stackoverflow == "" %}
        <a id="so-ic" href="{{site.stackoverflow}}"><i class="fa fa-stack-overflow"></i></a>
      {% endunless %}

      {% unless site.twitter == "" %}
        <a id="so-ic" href="{{site.twitter}}"><i class="fa fa-twitter"></i></a>
      {% endunless %}

    <a id="sitename" href="{{site.baseurl}}">username.github.io</a>
  </h1>

  <!-- Add something about you in p tag-->
  <p>Write something about you here...</p>
  <hr/>

  {% include nav-links.html %}

</div>

Only Github and Stackoverflow logos are succesfully displayed. Linkedin and Twitter logos are missing.

I am using Firefox 40.0 on Linux LMDE 2.

I have tried this fix, but it did not change anything.

[kirqe]

Hi,
Have you seen this article https://support.mozilla.org/en-US/questions/959250 ?

Hello Again. I'm here for say sorry about post this issue here because the problem never wasn't firefox instead was my operative system (opensuse with Gnome 3.8) configuration that cause this bad behavior. The simple reason was the selection of region and language because the most generic language configuration for Spanish is [Spanish from Spain], but my selection was [Spanish from Colombia] this cause the bad behavior in firefox. I change the selection and the problem was solved.

The icons render fine in firefox 40 on mac.
btw I'll update fa cdn link to 4.4.0

[Ezibenroc]

I had not seen this article, thank you.
I have changed my language and region (tried French, English and Spanish), but the problem persists.
Anyway, the google fonts render fine in my browser, which was not the case in the article you gave, so this is maybe not the same bug.