It's version 77.0.1

Hi Mel, the button is gone but if you type a space in the URL bar you can still get the classic list.

If you strongly prefer a button, I have an add-on, but it has its own drop-down, there's no way to put the add-on list into the official URL bar drop-down. If you want to take a look:

https://addons.mozilla.org/firefox/addon/show-history-top-sites-button/

Let me know if there are things you'd like me to improve.

OK I feel pretty stupid, I didn't know about the space in the URL. That seems to work well enough :) Also, I don't think I'd contribute too much to your project. I may check it out in the near future, but for now the space in the URL is performing well enough :) If I do install your add on, I will let you know, good or bad, my experience with, promise :) Thank you VERY much for the reply and suggestion!

To disable the drop-down from opening automatically when the cursor enters the address bar:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk. (2) In the search box above the list, type or paste URLB and pause while the list is filtered (3) Double-click the browser.urlbar.openViewOnFocus preference to switch the value from true to false

After that, to show the classic history list in the drop-down, you can either:

   press the space bar (type a space)
   press the down arrow key
   type ^ to initiate a history search

OK I feel pretty stupid, I didn't know about the space in the URL.

I'm only 3 days ahead of you on that one. Busy week! ;-)