I've added a custom search engine in Firefox, but then realized that its name/title was too long.

How do I edit a custom search engine's name in Firefox?
I tried going to 'Manage Search Engines...', but it only allows me to edit the keyword, not the name.

browser.search.showOneOffButtonsinabout:configto 'false'. I've suggested an edit adding this info and edited the link to point instead to its Google Code page where it can still be downloaded. – galacticninja Dec 13 '14 at 12:23