firefox search bar - top right

[talldude123]

https://addons.mozilla.org/search-engines.php

Just click the above link and add a search engine to the toolbar.

 

[Vybuni]

This happened to me. Just download the firefox2.0 beta2 and your search will be back.
http://internet.suite101.com/article.cfm/firefox_2_0_beta_2_is_out

 

[Trotter]

Have you tried to customize your toolbar and add it back in?