Firefox Address Bar Tricks (support.mozilla.org)
Published: August 26, 2021
Firefox provides easy way for searching the bookmarking, history or open tabs using the address bar.
For searching bookmarks only
Cmd/Ctrl + L
*the search would come only for bookmarks.
Similarly we can search for history, open tags or title using special character mentioned below
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Add ^ to show only matches in your browsing history. Add * to show only matches in your bookmarks. Add + to show only matches in bookmarks you've tagged. Add % to show only matches in your currently open tabs. Add # to show only matches where every search term is part of the title or part of a tag. Add $ to show only matches where every search term is part of the web address (URL). The text "https://" or "http://" in the URL is ignored but not "file:///". Add ? to show only search suggestions.