Firefox font rendering problem / issue

Question

maybe someone has an idea why this is happening and how to fix it?

p  
{ 
   display: block; 
   margin: 1em 0px;
}

p.description 
{
   color: #969797;
   font-family: Calibri, sans-serif;
   font-size: 15px;
   font-style: normal;
   font-weight: lighter;
   letter-spacing: -0.05em;
   line-height: 1em;
   text-decoration: none;
   text-shadow: none;
   text-transform: none;
   word-spacing: 0em;
}

Answer 1

Do you mean why FF displays bold?

I will need to see your code, I suppose ...

Special characters, however, are usually a bit complicated. If your type of character encoding is not installed correctly, or the visitor has the correct font that is not installed, the browser can simply select a different font similar to it.

The difference between browsers is caused by Webkit (at least that's what I think).

Answer 2

Safari Chrome Webkit, , ...