find the open tab by title keyword search in Firefox

I’m realizing that the reason i felt i needed this at all is more because Firefox’s addressbar history search, which is usually fairly reliably in suggesting a switch to an existing tab rather than opening a duplicate tab, doesn’t seem to be working at all right now. If i can get that to work (maybe disabling various extensions such as Duplicate Tab Closer) maybe i won’t need this extension at all:

Annoyingly, the order of searched words matters, or it just can’t search for multiple strings at once. ‘gitlab’ or ‘mlncn’ would bring up ‘mlncn |’ (along with lots of irrelevant results) but ‘gitlab mlncn’, which should have given me the exact tab i wanted, gave nothing at all.