Can't get rid of border around my links

Which browser are you using?
I am using Google Chrome. I do not see the issue.

You’re right!

I tried both Chrome and IE and no problem with any of them so I guess must be a Firefox related problem then since that’s what I’m using.

Hmm, how to fix that?

This is this (gray color as it appears) coming out from theme’s inline style

a:focus, select:focus, input[type="file"]:focus, input[type="radio"]:focus, input[type="submit"]:focus, input[type="checkbox"]:focus {
  outline: 5px auto #beb9a9;
  outline-offset: -1px;
}

Also this (red color as default) from the theme’s style

a:focus {
  outline: 5px auto #ff2a13;
  outline-offset: -1px;
}

So just go to theme option where it originates the inline style and disable it.

This code will disable it but I wouldn’t recommend using it because we should get rid of it from the source rather than override it, but anyway

a:focus { outline: none !important; }

Forgot to mention that I’m using a child theme and this is the style.css:

/*

Theme Name: X – Child Theme
Theme URI: https://theme.co/x/
Author: Themeco
Author URI: https://theme.co/
Description: Make all of your modifications to X in this child theme.
Version: 1.0.0
Template: x

*/

/* -------- HEADER -------- */
.x-logobar {
    background-color: transparent !important; border: none !important;
}

.x-brand img {
    position: absolute;
    top: -60px;
}

/* -------- NAVIGATION -------- */
.x-navbar .desktop .x-nav > li > a:hover, .x-navbar .desktop .x-nav > .x-active > a, .x-navbar .desktop .x-nav > .current-menu-item > a {
  box-shadow: none !important;
}

.x-boxed-layout-active .site {
background: url("https://primecreationband.com/wp-content/uploads/2015/04/Background_Paper_header.jpg");
background-size: 100%;
background-position: center top;
}

.x-navbar {
    background: url("https://primecreationband.com/wp-content/uploads/2015/04/leather-stripe-tile.jpg");
    background-size: auto 100%;
    border: none;
    margin-bottom: 60px;
    box-shadow: 0px 5px 20px #000;
}

@media screen and (max-width: 980px) {
	.x-navbar {
	    background: url("https://primecreationband.com/wp-content/uploads/2015/04/Leather-tile.jpg");
	    background-size: auto 150px;
	    border: none;
	    margin-bottom: 60px;
	    box-shadow: 0px 5px 20px #000;
	}
}

.x-btn-navbar {
margin-top:15px !important;
}

.x-btn-navbar.collapsed {
 background-color: #000 !important;
 color: #27231e !important;
}

.x-btn-navbar.collapsed:hover {
  color: #beb9a9 !important;
  background-color: #27231e !important;
}

.x-navbar .mobile .x-nav {
  margin: 80px 0 !important;
}

.x-nav li {
	padding-right:20px;
}
/* -------- CONTENT -------- */
.x-container.offset {
    margin-top:0px;
}

body {
    background-size: 100%;
}

.entry-wrap table a, .entry-wrap table a:visited, .entry-wrap table a:active {
  text-decoration: none;
  border-bottom: 1px dotted;
}

/* -------- EVENTS -------- */
.p-meta {
display: none;
}

/* -------- POSTS -------- */
a.entry-thumb:hover img {
	opacity: 1;
	filter: alpha(opacity=100);
	zoom: 1;
}

.entry-thumb:before {
	background-color:none;
	content: "";
	display:none;
}

.entry-thumb {
    max-height: 600px;
    overflow: hidden;
}

.date {
	margin-top:20px;
}

@media screen and (max-width: 980px) {
    .entry-thumb {
        max-height: 600px;
    }
}

@media screen and (max-width: 700px) {
    .entry-thumb {
        max-height: 400px;
    }
}

.entry-featured a:hover {
    opacity: 0.9;
}

/* -------- WIDGETS -------- */

.widget ul, .entry-wrap, .desktop .sub-menu {
    background: url("https://primecreationband.com/wp-content/uploads/2015/04/Leather-tile.jpg");
    background-size: 150px;
}

.floating-social-icon {
width: 38px;
box-shadow: 0px 0px 5px #000;
border-radius: 24px;
margin: 5px;
}

.social-icon-field {
text-align: left;
width: 100%;
}
@media screen and (max-width: 980px) {
    .social-icon-field {
    text-align: center;
}
}
  .hentry a {
border-bottom: 1px solid #75674e;
color: #75674e;
}

.hentry a:hover {
border-bottom: 1px solid #beb9a9;
color: #beb9a9;
text-decoration: none;
}

Yeah, this one solved it:
a:focus { outline: none !important; }

Couldn’t find the file where this was located:
a:focus {
outline: 5px auto #ff2a13;
outline-offset: -1px;
}

So I just put the solving css line in the theme’s custom field.
Thanks paulwpxp!