In Firefox's addressbar, you can limit results by typing special characters before or after your term
^ for matches in your browsing history.
* for matches in your bookmarks.
% for matches in your currently open tabs.
# for matches in page titles.
@ for matches in web addresses.
@peter @dpreacher It seems that a space after the special character is needed to trigger the filter (at least on my setup, same as yours).
@Pabo this was really helpful!
@Pabo @peter thanks for the tip. I am surprised this old toot is getting some attention again. Refresher course on firefox productivity :D