Hi, same problem, except that the AdSense block is first and it is replaced with a copy of the Facebook iFrame. I have just tested in Windows and Linux, the bug occurs only in Firefox 3.6.x, Firefox 3.5.x is fine. This might be an iFrame or JS problem.

The bug affects other websites too. Try this on firefox 3.6.10 (i tested it on 3.6.3 and its ok)

<iframe src="http://reader.google.com"></iframe>

result: blank screen

No problems here:

data:text/html;charset=utf-8,<iframe%20src="http://reader.google.com"%20height="100%"%20width="100%"></iframe>

I have the same problem (¬¬) So if you set network.http.use-cache option as value=false, then works fine (inside firefox about:config). But that is not the solution for the final user, only for devel environment.

Same problem here! I've tried tons of things but no way, it just doesn't work. Terexa you are soooo Right!

hi,

a solution that is working for me: just add a blank iframe (same size as the ads) UNDER the ads. Use a negative margin to put the ADS over the blank iframe.

exemple with 160x600 skyscraper:

< div id="conteiner">

< !-- BLANK IFRAME UNDER ADS -->

< div style="float: left;display:table-cell;padding:0px;margin:0px;">

<iframe id="blank_iframe" name="blank_iframe" src="" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:160px; height:600px;" allowTransparency="true"></iframe>

</div>

< !-- skyscraper 160x600 ADS -->

< div style="float: left;padding:0px;margin:0px;margin-left:-160px;">

<script type="text/javascript">
 ...google ads code
</script>
</div>

</div>

I have the same problem with iframes and only on Firefox.

Facebook widgets render in my iframes sometimes my iframes in theirs

Also one time I sow that www.addthis.com service was rendered in my iframe

really need some help with this.

Same problem with FB and youtube... Works fine in IE8. There's somehow a cache issue because when I replace the embedded youtube video, the previous one still appears twice. Clearing the cache won't fix it though.

I've just seen on the bugtracker site the bug is over 4 years old. You can also fix it with ctrl-F5 but then again it's not what we need.

https://bugzilla.mozilla.org/show_bug.cgi?id=356558

I was having all kinds of problems with the FB like button and various iframes in FF.

I solved it by adding an empty iframe <iframe></iframe> directly before my fb-like div.