For full context please see https://bugzilla.mozilla.org/show_bug.cgi?id=1783460#c3 and the following comments about my concerns with the current implementation. Since this bug is already closed I filed this new bug for better visibility.

In https://bugzilla.mozilla.org/show_bug.cgi?id=1783460#c4 Dale Harvey wrote:

Another hope is that since quickactions are quite strongly filtered, the user needs to be typing something quite specific for them to keep appearing

This part is not true with the current implementation. At the moment the quick action buttons already appear after one (!) typed character. I don't think that one character is a "quite specific" input at all. Since the suggestion to place the quick action buttons to the bottom was WONTFIX'ed I suggest that the quick action buttons should not appear after only one typed character. Otherwise it's more complicated to visit frequently visited websites. To quote myself from the other bug:

The first line is always a domain autocompletion that would bring me to the home page of a domain. But often I am not interested in the home pages. So I have to press the arrow down button to get the first history result. And with the quick action buttons the first history suggestion is below the quick action buttons.

Example:

I visit https://www.transfermarkt.de/hertha-bsc/news/verein/44 a few times per day. It's the first history suggestion for me if I enter "t". Without quick action buttons I have to press the arrow down key one time. With quick action buttons I have to press the arrow down key three times because there is the "manage themes" quick action as well as the "?" button with the SUMO link. So instead of three actions ("t", arrow down, Enter) I have to execute five actions ("t", arrow down, arrow down, arrow down, Enter) every time I want to open this page.

[Tracking Requested - why for this release]:

It's a really big usability issue if I have to make five (!) key presses instead of three (an 67% increase of needed key presses!) to visit a page that I visit several times per day.

QuickActions are not enabled on release, we do no need to track

I am confused by your steps to reproduce, if you visit a site multiple times per day and it becomes your first / heuristic result you should not need to press down any times to visit the result, you should just press enter. QuickActions were placed specifically after the heuristic result as to not interfere with the users most visited site. Is the site you visit multiple times a day below something that you do not visit multiple times a day?

QuickActions are (/can be) shown without the user having typed anything, it would be quite strange behaviour for the user to see a quickaction, to type what they see to filter that quickaction and for it to dissapear then reappear as they type, that is one important thing to consider while addressing this feedback

I am confused by your steps to reproduce, if you visit a site multiple times per day and it becomes your first / heuristic result you should not need to press down any times to visit the result, you should just press enter.

No. There is still the domain autofill. If I just press enter then https://www.transfermarkt.de/ will get opened, not https://www.transfermarkt.de/hertha-bsc/news/verein/44.

QuickActions were placed specifically after the heuristic result as to not interfere with the users most visited site.

If heuristic result means the page I visit most often then it's not what I see.

Is the site you visit multiple times a day below something that you do not visit multiple times a day?

The first result is the result of the domain autofill. I almost never visit the home page of that website. Below that the quick action buttons appear, and below these buttons I get the relevant result.

I attached a screenshot that shows the result after typing "t". Maybe that makes it more clear.