<html>
  <head>
    <meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">
  </head>
  <body text="#000000" bgcolor="#FFFFFF">
    <div class="moz-cite-prefix"><br>
      Hi, Travis -<br>
      <br>
      This would be a great question to pursue on Ask.Mozilla.Org -
      <a class="moz-txt-link-freetext" href="https://ask.mozilla.org/questions/">https://ask.mozilla.org/questions/</a><br>
      <br>
      If you could repost it there, it will get a wider developer
      audience than you'd see on firefox-dev, and the answers will be
      easier for other people to find (and rate!) in the future.<br>
      <br>
      - mhoye<br>
      <br>
      On 2014-05-12, 7:03 PM, Travis Bretton wrote:<br>
    </div>
    <blockquote
cite="mid:CAC0YuGVKbvs5tUA533pqFuW374ezdYqmXO3-=OjYPMOddkQk9Q@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_default"
          style="font-size:small;color:rgb(12,52,61)">Ah, thanks Dave.
          Very interesting. Do you all manually update the list when new
          versions come out?<br>
        </div>
      </div>
      <div class="gmail_extra">
        <br>
        <br>
        <div class="gmail_quote">On Mon, May 12, 2014 at 11:04 AM, Dave
          Townsend <span dir="ltr"><<a moz-do-not-send="true"
              href="mailto:dtownsend@mozilla.com" target="_blank">dtownsend@mozilla.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div dir="ltr">Not sure how specific you want me to go but
              essentially we maintain a list of known outdated and
              vulnerable plugins which Firefox downloads periodically as
              part of the blocklist service. It uses regular expressions
              to test against the plugins that Firefox has installed and
              when it finds a match it warns the user.<br>
            </div>
            <div class="gmail_extra"><br>
              <br>
              <div class="gmail_quote">
                <div>
                  <div class="h5">On Mon, May 12, 2014 at 9:54 AM,
                    Travis Bretton <span dir="ltr"><<a
                        moz-do-not-send="true"
                        href="mailto:trapperb@gmail.com" target="_blank">trapperb@gmail.com</a>></span>
                    wrote:<br>
                  </div>
                </div>
                <blockquote class="gmail_quote" style="margin:0 0 0
                  .8ex;border-left:1px #ccc solid;padding-left:1ex">
                  <div>
                    <div class="h5">
                      <div dir="ltr">
                        <div class="gmail_default"
                          style="font-size:small;color:rgb(12,52,61)">
                          Hi.<br>
                          <br>
                        </div>
                        <div class="gmail_default"
                          style="font-size:small;color:rgb(12,52,61)">
                          I have a question and I'm hoping that the fine
                          folks who actually develop Firefox can answer
                          it.<br>
                          <br>
                        </div>
                        <div class="gmail_default"
                          style="font-size:small;color:rgb(12,52,61)">How
                          does Firefox detect plugin updates? For
                          example, when a user attempts to execute a
                          Silverlight module, but they have an
                          out-of-date Microsoft Silverlight plugin
                          installed, Firefox will helpfully display a
                          notification to the user that they are
                          attempting to use an out-of-date plugin and
                          that they really should update it. But how
                          does Firefox know what is the current version
                          of the plugin?<br>
                          <br>
                        </div>
                        <div class="gmail_default"
                          style="font-size:small;color:rgb(12,52,61)">I've
                          speculated endlessly on what might actually be
                          going on, but I thought I'd get the facts by
                          going to you all.<br>
                          <br>
                        </div>
                        <div class="gmail_default"
                          style="font-size:small;color:rgb(12,52,61)">
                          Thanks!<span><font color="#888888"><br>
                            </font></span></div>
                        <span><font color="#888888">
                            <div class="gmail_default"
                              style="font-size:small;color:rgb(12,52,61)">-Travis<br>
                            </div>
                          </font></span></div>
                      <br>
                    </div>
                  </div>
                  _______________________________________________<br>
                  firefox-dev mailing list<br>
                  <a moz-do-not-send="true"
                    href="mailto:firefox-dev@mozilla.org"
                    target="_blank">firefox-dev@mozilla.org</a><br>
                  <a moz-do-not-send="true"
                    href="https://mail.mozilla.org/listinfo/firefox-dev"
                    target="_blank">https://mail.mozilla.org/listinfo/firefox-dev</a><br>
                  <br>
                </blockquote>
              </div>
              <br>
            </div>
          </blockquote>
        </div>
        <br>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
firefox-dev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:firefox-dev@mozilla.org">firefox-dev@mozilla.org</a>
<a class="moz-txt-link-freetext" href="https://mail.mozilla.org/listinfo/firefox-dev">https://mail.mozilla.org/listinfo/firefox-dev</a>
</pre>
    </blockquote>
    <br>
  </body>
</html>