While viewing a mail folder, e.g. inbox, if I use the quick search (Ctrl+Shift+K) then what's supposed to happen is this: 1. type something. Matching search results displayed. 2. type something with no search results. Message comes up saying "Continue this search across all folders: Press Enter again to continue your search for: <whatever>". 3. If you type Enter, it opens the general/global search 4. If you don't type Enter, it doesn't. What actually happens after (2) is that *whatever* you type, if it results in no search results, the full search is opened. This is super annoying. And I consider it a bug. I can imagine it's deliberate along the lines of "well, we said there were no results but they've gone on typing, so they must want to do a full search because otherwise they're being stupid trying to narrow a search that already has no results. Bless the idiot user, let's help them out". However there's a couple of problems with this: - it's not what says will happen. It offers Enter as a way to search further - opening a completely different UX which is jarring. - Because of the search delay, if you type fast then even pressing backspace, to correct your search, results in another search key that is not found, triggering the global search. So if I quickly type "htomail", no results, ah, I see what I did, begin pressing backspace to change my typo, then as soon as I press backspace once, it searches "htomai" which also has zero results and opens global search. Is this something that can be configured, or is there somewhere I can report a bug? Nb. This is probably the same as the unresolved archived thread here: https://support.mozilla.org/en-US/questions/1302728