I've lost my bookmarks with every version of this app. I've run the program exactly as suggested. Each time it completes checking my bookmarks list, I select the bookmarks that are no long valid, and attempt to delete them, per the developers instructions. My original bookmarks are saved in my documents folder, just as he said they would, so this is no problem. What IS a problem is the 4 hours wasted running the app, and then being left with all the undesirable bookmarks still in my original bookmarks (saved to documents), because after selecting all the undesirable bookmarks in the check boxes, the program begins to delete them, but freezes, giving me the Apple "watch" - from which I have to force quit the program (after waiting 25 minutes just to give it plenty of time to come out of what looks like a freeze).
I love the idea of the app, have paid for it, and I suppose it's no big deal to loose the affordable $6 - but I Do mind losing so much of my time to this program.
It is NOT ready for prime time. I know, because I am a tech, who gets paid to trouble shoot program like this all day. And yes, I've tried it on more than one Mac, and trouble shot it to death! I'm not mad at the developer-just frustrated.