It looks like some relevant discussion is at: https://docs.google.com/document/d/1G65IlLQqooUnRFtrzi-FU79MbPpSG0MNJ6F8zXV4z8g/ https://docs.google.com/document

It looks like some relevant discussion is at: https://docs.google.com/document/d/1G65IlLQqooUnRFtrzi-FU79MbPpSG0MNJ6F8zXV4z8g/ https://docs.google.com/document/d/1G65IlLQqooUnRFtrzi-FU79M... From that it looks like bookmark keyword searches will be auto-migrated to a new user interface in about:preferences that will allow users to create their own "custom search engine", which seems to imply it will have all the features necessary to do what bookmark keyword searches can currently do. Without knowing anything about this change prior to reading your comment, on the surface this seems like a good thing to me since it sounds like it will be a lot more discoverable and usable to your average user than bookmark keyword searches currently are. Disclosure: I'm a Mozilla developer.