JiveQ

Search selected words or right click over the words and search from context menu from within all applications. Including Acrobat Reader, FireFox and Thunderbird, Internet Explorer, Office applications like Word and Outlook and Open Office. Use search suggest to get alternative suggestions for your searches. Create custom search buttons to use your own favorite search engines. Version 4.0.0.2 may include unspecified updates, enhancements, and bug fixes.