This is an elegant add-on that does what it should, with a minimum of clutter.
I'd like to submit a feature request (at the risk of adding clutter...). Currently, when a search string contains multiple words, the add on substitutes plus signs for the spaces between search terms. This works for most sites, but some require space characters (or %20) instead. It would be great to have an advanced option to choose which of these, or a custom character, is included in the string, on a per-site basis.
