AIO Search Firefox Toolbar is a handy Firefox add-on that provides you with an enhanced toolbar for searching on the web by categories, and display results in tabs on one page through www.aiosearch.com website. You can search multiple search engines grouped by category which appears on the toolbar menu as horizontal tabs, or search single search engine. All categories and engines are editable and sortable through the drag and drop form. Site list is auto-updated keeping you up-to-date with the best search sites available. A lot of accessible tools have been added to the toolbar to make it easy to make your search like 'keyword highlighter', 'keyword auto-complete' and context menu options. Features :

Search sites list by category and open them all on www.aiosearch.com tabs.
Add your own search engines or category.
Personalized site list and categories saved to your www.aiosearch.com account.
Flexible popup menu width to fit screen width and to give user more space to choose from sites.
Arrange Sites list and categories with easy drag and drop form.
Easy show/hide icon for the dockable toolbar.
integrated Firefox auto-complete search keywords.
Context menu search option for the selected text on the page.