| Throbber Restored | | - | | |
| Throbber | | - | | |
| Thin Tabs | | - | | |
| Thin Bookmarks | | - | | |
| Themes Menu | | - | | |
| ThemeTool | | - | | |
| The Addon Bar | | - | | |
| Temporary Containers | | - | | |
| Tabzie | | - | | |
| Tabulate | | - | | |
| Tabsurd Tab Sort Utilities | | - | | |
| Tabsplash | | - | | |
| Tabsmack | | - | | |
| Tabsflip | | - | | |
| TabsRight | | - | | |
| Tabs to Windows | | - | | |
| Tabs on Bottom (Australis) | | - | | |
| Tabs on Bottom | | - | | |
| Tabs Open Relative (Modified) | | - | | |
| Tabs Menu | | - | | |
| Tabs Group Extension | | - | | |
| Tabs From Other Devices Button | | - | | |
| Tabs Counter | | - | | |
| Tabs Always In Titlebar | | - | | |
| Tabmarks | | - | | |
| Tabloc | | - | | |
| Tabist | | - | | |
| Tabhunter | | - | | |
| Tabby2 | | - | | |
| Tabby - Window ＆ Tab Manager | | - | | |
| Tabbrowser Preferences | | - | | |
| Tabbie ： easy tab viewer | | - | | |
| Tabber | | - | | |
| Tabbard | | - | | |
| Tabatus | | - | | |
| Tabagotchi | | - | | |
| TabWalk | | - | | |
| TabToggle | | - | | |
| TabStash | | - | | |
| TabSlide | | - | | |
| TabSearch | | - | | |
| TabRestorePre | | - | | |
| TabRenamizer-Barbar | | - | | |
| TabRenamizer | | - | | |
| TabQueue | | - | | |
| TabNavigator | | - | | |
| TabMyPosition Revived | | - | | |
| TabMan | | - | | |
| TabList | | - | | |
| TabKit 2nd Edition | | - | | |
