It changed my default search engine to itself, with no option to change it back ! If I wanted to use DDG's not very good search engine, then I would. Absolutely uninstalled.
I have used DDG for years on all browsers, so why is @Mozilla still marking this addon as "not a Recommended Extension" in its directory? https://addons.mozilla.org/en-US/firefox/addon/duckduckgo-for-firefox/reviews/
