title: Select in Bootstrap modal window doesn't work in Firefox
body: <p>I want to make a modal window, in which i choose an option from form select and pass it for further functionallity.
  The problem is, that when the select list drops down, i can't change the selected option. This problem occures only in Firefox. In Chrome it seems working well.</p>
  
  <p>Below is the code, that i used in my application. I don't have any additional styles or scripts, besides thoose from Bootstrap.</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal"&gt;
    Launch
  &lt;/button&gt;
  
      &lt;div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" data-backdrop="static"&gt;
            &lt;div class="modal-dialog" role="document"&gt;
              &lt;div class="modal-content"&gt;
                &lt;div class="modal-header"&gt;
                  &lt;button type="button" class="close" data-dismiss="modal" aria-label="Close"&gt;&lt;span aria-hidden="true"&gt;&amp;times;&lt;/span&gt;&lt;/button&gt;
                  &lt;h4 class="modal-title" id="myModalLabel"&gt;Modal title&lt;/h4&gt;
                &lt;/div&gt;
                &lt;div class="modal-body"&gt;
                  &lt;div&gt;
                      &lt;select class="form-control" &gt;
                        &lt;option selected&gt;1&lt;/option&gt;
                        &lt;option&gt;2&lt;/option&gt;
                        &lt;option&gt;3&lt;/option&gt;
                        &lt;option&gt;4&lt;/option&gt;
                        &lt;option&gt;5&lt;/option&gt;
                      &lt;/select&gt;
                  &lt;/div&gt;
  
                &lt;/div&gt;
                &lt;div class="modal-footer"&gt;
                  &lt;button type="button" class="btn btn-default" data-dismiss="modal"&gt;Close&lt;/button&gt;
                  &lt;button type="button" class="btn btn-primary" id='generate'&gt;Generate&lt;/button&gt;
                &lt;/div&gt;
              &lt;/div&gt;
            &lt;/div&gt;
          &lt;/div&gt;</code></pre>
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