Ok addon for a good search engine Rated 3 out of 5 stars
You really need to fix the button issue.This review is for a previous version of the add-on (0.2.43.1-signed).
Toolbar disable setting
There is a setting to remove it. If you go to Add-ons -> DuckDuckGo Plus -> Options, just uncheck the setting labeled "Show DuckDuckGo popup button in the toolbar." The latest version restores this setting and it is working properly. We are also submitting a new version that duplicates this setting in the toolbar button itself. Thank you for being patient -- the review process can take some time.
Update: With the release of Firefox 23 today, many issues with default search engines in Firefox have been fixed. The button has been confirmed to be working properly now and we've included a button in the toolbar button that allows you to hide/show the same button. Could you please let us know if this is working properly for you and, if so, we'd love for you to consider an updated review. If anything seems amiss, please let us know directly, by emailing us at firstname.lastname@example.org
-The DuckDuckGo Team