hidden options in 0.4.6 Rated 5 out of 5 stars

The hidden options explained here (in Russian): http://enerjazzer.livejournal.com/47849.html.
In two words:

extensions.contextsearch.separatorItems is a comma-separated (no spaces) list of engine names. Separators will be added BEFORE each name in the list. See an example and a screenshot in the link above.

extensions.contextsearch.quoteStringsWithSpaces - just a boolean true/false flag.

This review is for a previous version of the add-on (