Thanks guys much appreciated
tepgn after it changed back to Google i searched under about
:config and Blekko was still there see pic above so is it some kind of computer virus or trojan etc? Or does it come with Mozilla Firefox when you download it as i read that Blekko joined up with Mozilla but was also told it should not download with Mozilla so just wondering if its some kind of trojan or w/e?
Firefox flirts with Blekko for 'instant' search
An experimental add-on from Mozilla and Blekko powers a new take on "instant" search results in Firefox.
Mozilla may not have a dedicated in-house search engine division the way that Google and Microsoft do, but it does have a new partnership with alterna-search Blekko.
The Blekko add-on (download), developed by Mozilla Labs' Prospector team, aims to cut down on the repetitive search behaviors of many Firefox users. Mozilla says that its research indicates that people often search for the same term, not because they're looking to find it again but because they're attempting to navigate elsewhere. This add-on, like Google's Instant search feature, cuts down on the extra steps by pre-caching sites, showing preview pages, and recognizing commonly searched-for terms from only a few typed letters.
The add-on changes your default search to Blekko, and it's restartless, which means that Firefox won't have to be closed and re-opened to use the add-on.
Link to above