User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Build ID: 20170308094037 Steps to reproduce: 1. Hide the search bar from the menu and toolbar 2. Press Ctrl + K Actual results: The location bar was given input focus, and its current text highlighted (as if Ctrl + L was pressed) Expected results: In previous versions, the "home page" was opened, and the searchbar was given input focus. Based on #1183286, I think this change may have been intentional, but this actually is a regression for me: "Ctrl + L" works identically, so a new shortcut is unneccessary. And since I disabled search suggestions in the urlbar (but not for the searchbar), the new behaviour does not give me search suggestions. I see three ways to solve my problem: either use the old behaviour (opening the "home page"), show search suggestions when Ctrl + K has been pressed, but not if Ctrl + L has been pressed or use the behaviour used in Google Chrome: "Ctrl + K" inserts a question-mark, which indicates the current text is a search.

I made a WebExtension that brings back this feature :) Enjoy! https://addons.mozilla.org/en-US/firefox/addon/control-k-to-about-home/ There are 2 limitations: It only works in web pages so it will not work when you are in about:addons for examaple and the second limitation is that it does not work in some web sites for example in AMO it does not work.