Thank you, Mirsky.

It just so happens that we've been working on another bookmarking problem here, and during the last couple hours I've used the BookMacsterize bookmarklet in Safari to make about 100 bookarks.  No problems.  (We're getting sound effects in the next version )

The URL in your BookMacsterize bookmarklet is perfect.  Since bookmacster://hello works, I conclude that BookMacster is getting the message.  Do you know how to check in Console.app and see if BookMacster or the system issue any warning or error when you hit the BookMacsterizer?

You are correct about adding the bookmark twice.

So now we're back to it works fine for us here but doesn't work for you  We should look at its URL.  It should be this:

gent);

Or delete it and re-export it.  To re-export, click in the menu File ▸ Export Bookmarklet to ▸ Safari (QuickMerge – No Delete).

Let me know if that fixes it.  I'll keep thinking about the problem.

Oh, another thing.  Paste this into your Safari address bar

bookmacster://hello

and hit return.  Does BookMacster launch or come to the front?

Mirskyman wrote on May 25^th, 2011 at 6:19am:
BookMacsterize works for me when I click it in Safari.  Even if BookMacster is not running, Mac OS X launches BookMacster.  One bug I just noticed is that if you don't have a Bookmarkshelf open (minimized to the Dock counts as open), BookMacster flashes a dialog asking which of your Recent Documents you want to open, but then reactivates Safari after a few milliseconds.  We'll fix that; I think it was a byproduct of fixing a more serious bug.

Another possibility is that it did add the bookmark.  Unlike URL Manager Pro which I think always popped up when you added a bookmark, BookMacster has two modes, as explained here:

http://sheepsystems.com/bookmacster/HelpBook/pppngpthInspctrfrNwlLndd

In a future version, BookMacster will play a sound effect when a bookmark is added.  Maybe a "gulp".

Let us know if either of these two explanations resolves the issue.