At some point the Quotes Widget stopped working for me but otherwise this has been great.

If using a search box it will default to Google unless changed by selecting a different provider via Search Box settings.

It would be nice if the extension description made this clearer, as defaulting to Google has clearly been undesired by some users who have left low star ratings.

Even better, the extension would inherit the default search engine selected for Firefox, but I don't know what is involved on the programming end of things.