OK, we might still have the original problem, if launch/quitting Firefox in the correct profile did not fix it.  Let me know if there's any more trouble.

I'll have to think about if there's anything we can learn from this.  The fact that the profiles feature in Firefox causes pain sometimes is already well known 

BookMacster has two methods for exporting to Firefox.  The first method is used when Firefox is not running in the target profile, and can generate Error 571328.  The second method, which uses our Firefox extension, is used when Firefox is running in the target profile, and can not generate Error 571328 as far as I can see.  So I want to make sure you're really in that default profile.

Mozilla made this difficult.  Click in the menu: Tools ▸ Developer ▸ Error Console.  A window will appear. Near the top is a text field labelled Code:.  Paste in the following command:

   Components.classes["@mozilla.org/file/directory_service;1"].getService( Components.interfaces.nsIProperties).get("ProfD", Components.interfaces.nsIFile).path

Then click the Evaluate button.

The answer will appear as a new console entry at the bottom of the window.  The correct answer, if you are indeed in the default profile, is something like this:

   /Users/you/Library/Application Support/Firefox/Profiles/xxxxxxxx.default

If you are in the default profile, launch BookMacster and try once again to export while Firefox is running in the default profile.

The only other thing to do is, in BookMacster, click in the menu Help ▸ Trouble Zipper to send me your data.  When asked, click Include Bookmarks, then select Firefox, then the default profile.  I'll try and reproduce the problem.  But I don't know – getting Error 571328 when Firefox is running in the target profile looks to be almost impossible, or at least it should ask to install the extension.  Might also be interesting to, in BookMacster, click in the menu: BookMacster ▸ Manage Browser Add-Ons and see if our Firefox extension is installed and tests OK in that default profile.

It looks like you have two Firefox profiles, but the one that you're having trouble exporting to is the default profile (because the Export checkbox for JonDoFox is switched off).

Is the default profile the one that you want to export to?  When you launched and quit Firefox a few minutes ago, did you launch it into the default profile or into JonDoFox?   (The correct answer is default, because that's the one we're having trouble with.)

I'm not sure what to make of this, but you got the right point as it seems. Something here is not matching correctly.

Hey Jerry,

top response time. Tried "Show all bookmarks" closed firefox. same error.

tried with firefox open > same error

Importing works fine. Once I click export I get: