The MySQL Query Browser is a graphical tool provided by MySQL AB for creating, executing, and optimizing queries in a graphical environment. Where the http://www.mysql.com/products/administrator/ is designed to administer a MySQL server, the MySQL Query Browser is designed to help you query and analyze data stored within your MySQL database.
While all queries executed in the MySQL Query Browser can also be run from the command-line using the mysql utility, the MySQL Query Browser allows for the querying and editing of data in a more intuitive, graphical manner.
MySQL Query Browser is designed to work with MySQL versions 4.0 and higher.
MySQL Query Browser is, to a large extent, the result of feedback received from many users over a period of several years. However, if you find it's lacking some feature important to you, or if you discover a bug, please use our MySQL Bug System to request features or report problems.
For MySQL Query Browser, there's a dedicated forum available on http://forums.mysql.com/list.php?108.