And others that are good but in no means security related are: Dictionary (your own language of choice of course)

Tab Mix Plus (for some reason, Mozillas addon page does not have compatitble version with the latest firefox :S wierd, but below is a link to the addonn authors page which goes to a dev link which is totally 100% compatible

http://tmp.garyr.net/tabmixplus-dev-build.xpi

Hope that helps, adios

Super Rat

PS: actually stop using google is another opinion (also entirely mine lol) I myself now very happily use Bing http://www.bing.com I find there page fresher and nicer to use, its easier to say lol, and most importantly results are easily on a par if not far better IMO, especially image search IMO (pleasssssse note i/we do not need a load of google lovers telling me im wrong, i have gone to the trouble of explaining this in my OWN personal opinion, of years of using google and months of happily using Bing, thanks).

Be daring, use something different and see for yourself, or not…

Also if you use firefox and you want an add on to add Bing as the default search engine in the in built search engine, please go to

https://addons.mozilla.org/en-US/firefox/downloads/latest/10434/addon-10434-latest.xml?src=addondetail

AND BING DOESN’T TRACK YOU to the massive extent that google do – lol yet… But the point is they don’t at present where as google blatantly do!