STR:

1. Add "screenshot" to your browser history, e.g. by visiting https://bugzilla.mozilla.org/show_bug.cgi?id=1411641
2. Open a new private browsing window (it shows about:privatebrowsing).
3. Type "screenshot".
   • This should bring the "Take a screenshot" quickaction, and the search result for the history item from step 1.
4. Try to use arrow keys to get to the Firefox Suggest result for the history item from step 1.

Expected:

• I should be able to get to the history item in the search results by arrow keys (arrow down)
  • When the current tab is not about:privatebrowsing, but e.g. a web page, the "Take a Screenshot" quickaction is not disabled, and arrow-down focuses it. Then another arrow-down focuses the desired search result.

Actual:

• When I press arrow-down, the focus disappears. When I press arrow down/up again, the address bar is focused again. There is no way to reach the history result (under Firefox Suggest).

This happens on the latest version of Firefox Nightly, Firefox 112.0a1 buildID 20230228085339

This is a dupe of bug 1814630, which was duped to bug 1790635, which isn't really the same, but in summary it looks like the plan here is to not show the quick actions at all when they only contain disabled actions. I'll dupe this to bug 1814630 since it's clearly the duplicate.