[kbrosnan]

Use the search filters.

> 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://xn--ivg or “http://xn--ivg in the URL is ignored, but not “file:///”.

> Add ? to show only search suggestions.

You can select the search constraint in the dropdown if you don't want to memorize the list.

https://support.mozilla.org/en-US/kb/address-bar-autocomplet...

[metadat]

I meant in the bookmark search, the search box which appears after pressing cmd/ctrl-b.

This is still an interesting workaround, I'll give a shot. Thanks!