View source for Firefox over X11 with Xming

I use the xlaunch files like this:
<pre>
<?xml version="1.0"?>
<XLaunch xmlns="http://www.straightrunning.com/XmingNotes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.straightrunning.com/XmingNotes XLaunch.xsd" WindowMode="MultiWindow" ClientMode="StartProgram" Program="firefox" ClientStart="PuTTY" PW="password" PathToProtocol="C:\\WINDOWS\\" RemoteHost="router" RemoteUser="username" ExtraSSH="-X" Display="0" Clipboard="true"/>
</pre>
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For a faster experience I use blowfish instead of aes.
Also, rendering done at the remote site is done at a frame rate using the layout.frame_rate in about:config. I set this value to 5 instead of -1.