Problems Rated 1 out of 5 stars
Right after I installed this add-on, the first five search results (yahoo or google were the ones I used) were redirected to http://googleads doubleclick.net.. strangely both IE9 and Firefox 15.0.1 were victims.
What happened was: after the usual "paid ads" at the top of the results, the next five "real results" redirected to googleads.
After I removed this addon, the problem went away for both Ffox and IE9.
I put the addon back, the redirects came bad. Removed it a second time, there were no redirects.
Something's wrong here. I recommend that, if you must instal, you keep your eye on the results of any search engine.