[Conkeror] Problems with addons compatibility

[A.W.]

You can edit the add-on file to make it compatible.

Here's something i was sent a while back, which I used to get adblock installed.

"
Alternatively, if you unzip the xpi file, and edit the install.rdf file
by adding the following at the appropriate (should be obvious by looking
at the file) location:

   <em:targetApplication>
     <!-- Conkeror -->
     <Description>
       <em:id>{a79fe89b-6662-4ff4-8e88-09950ad4dfde}</em:id>
       <em:minVersion>0.1</em:minVersion>
       <em:maxVersion>1.0</em:maxVersion>
     </Description>
   </em:targetApplication>

This just says it is compatible with Conkeror, which will appease the
XULrunner extension manager.  The minVersion and maxVersion values
aren't too important. You should still leave
extensions.checkCompatibility set to false.
"


---------- Forwarded message ----------
From: Nathan Huesken <con at lonely-star.org>
To: Conkeror Mailinglist <conkeror at mozdev.org>
Date: Fri, 18 Jul 2008 16:01:23 +0200
Subject: [Conkeror] Problems with addons compatibility
Hello together,

I am trying to instal addons in conkeror.
I added:

user_pref("extensions.checkCompatibility", false);
user_pref("extensions.checkUpdateSecurity", false);

To my conkeror.rc and the extension dialog says:
"Add-on compatibility checking is disabled. You may have incompatible add-ons."

So far so good.
But evert add-on I install (I tried Addblock Plus, Foxmark and
GooglePreview) says:
"Not compatible with Conkeror 0.9" and has a red Circle with a white
line on the symbol.

Has anyone got GoolgePreview to work?

Thanks!
Nathan