If you have been using Firefox browser to surf the internet and visit Wikipedia or Wiktionary websites, then here is some cool info for you. Wikipedia and Wiktionary are amongst the best sites that provide useful information and meaning of terms on almost anything that exist in the world.
So to open Wikipedia and Wiktionary what you have been doing? Open them in a new tab and search the term there, or search on Google right? But both these processes are bit time consuming and needs extra effort.
With the help of this firefox plug-in called QuickWiki, you can browse both these websites without the need of opening them in a new window/tab. Yes, QuickWiki provides you the quick lookup in Wiktionary and Wikipedia, without the need to open a new tab. What you need to do is just right click on the word while holding Shift/Ctrl/Alt and the result would get displayed automatically in a pop up.
While using this add-on you can browse Wikipedia in many languages, Wiktionary will support only English as of now. Also you can configure the keys to be pressed while right clicking in the options menu of the add-on.
If you are a person who likes to browse for a term in Wikipedia and Wiktionary then this Firefox extension is for you.