| 3d-flip-tab-switch | | - | | |
| A Better Firefox Add-on Bar | | - | | |
| A Double Click to Close Tab | | - | | |
| AFx 8-O Nav Bar Buttons (48px) | | - | | |
| AFx 8-O Nav Bar Buttons (64px) | | - | | |
| ALL ROBOT | | - | | |
| Aaapptabs | | - | | |
| About support button | | - | | |
| Active Tab Switcher | | - | | |
| Add Page Title To URL Bar | | - | | |
| Add URL to Window Title | | - | | |
| Add-on Toolbarbutton | | - | | |
| Addons in Urlbar | | - | | |
| AddressBarCleaner | | - | | |
| Advanced Locationbar | | - | | |
| Advanced Search | | - | | |
| Advanced Tab Navigation | | - | | |
| AdvancedClose | | - | | |
| Aero Window Title | | - | | |
| AlexFlipnote／Homepage | | - | | |
| All About Location Bar | | - | | |
| All Menus Button | | - | | |
| All Tabs Helper | | - | | |
| All Tabs Restorer | | - | | |
| All the Tools | | - | | |
| All-in-One Sidebar | | - | | |
| Alt New Tab | | - | | |
| Always Awesome Bar | | - | | |
| Always Right | | - | | |
| Any New Tab | | - | | |
| App Button Clear | | - | | |
| App Button Color | | - | | |
| App Button No Text | | - | | |
| App Button Remove | | - | | |
| App Tab Initializer | | - | | |
| AppTab Nav-B-Gone | | - | | |
| AppTabs Plus | | - | | |
| Append Domain | | - | | |
| Append New Tab | | - | | |
| Attack On The Clones | | - | | |
| Australis Minimalis | | - | | |
| Australis Slimmr | | - | | |
| Australis Small Icons | | - | | |
| Australis-like refresh in URL bar | | - | | |
| AustralisBookBar | | - | | |
| Auto Close Tab | | - | | |
| Auto Close Tabs | | - | | |
| Auto Complete | | - | | |
| Auto Hide Sidebar | | - | | |
| Auto Private | | - | | |
| Auto Refresh | | - | | |
| Auto Reload Tab | | - | | |
| Auto Tab Discard | | - | | |
| Auto Unload Tab | | - | | |
| Auto arrange tabs | | - | | |
| Auto-reduce Tabs | | - | | |
| AutoClose Tabs | | - | | |
| AutoGroup | | - | | |
| AutoPin | | - | | |
| AutoPinTab | | - | | |
| AutoPinTabs | | - | | |
| AutoRefresh | | - | | |
| Autoclose Sidebar | | - | | |
| Autohide | | - | | 対応済 |
| Autohide Bookmarks | | - | | |
| Autohide Tabbar | | - | | |
| Autopin | | - | | |
| Awesome Search | | - | | |
| Awesome Search Extension | | - | | |
| Awesome Throbber | | - | | |
| AwesomeBar Power Tip | | - | | |
| Back Forward separate | | - | | |
| Back to Close | | - | | |
| Back to Close WE | | - | | |
| Back to Owner Tab | | - | | |
| Background Tabs | | - | | |
| Background image | | - | | |
| Backlose | | - | | |
| Backward／Forward History Dropdown | | - | | |
| Back／Forward History Tweaks (restartless) | | - | | |
| Back／forward dropmarker | | - | | |
| BarTab | | - | | |
| BarTab Heavy | | - | | |
| BarTab Lite | | - | | |
| BarTab Lite X | | - | | |
| Barlesque | | - | | |
| Best Reload Plus | | - | | |
| Best Sidebar Bookmars Panel | | - | | |
| Best Theme like Google Material Design Paper Theme | | - | | |
| Better URL Bar | | - | | |
| Beyond Australis | | - | | |
| Big Buttons | | - | | |
| Big New Tab Button | | - | | |
| Bigger Address Bar Font | | - | | |
| Blank New Tab | | - | | |
| Blank Private Browsing Page | | - | | |
| Bookmark Autohider | | - | | |
| Bookmark Toolbar Toggler | | - | | |
| Bookmarks Sidebar Button | | - | | |
| Bookmarks Sidebar Scroll Retainer | | - | | |
| Bookmarks Toolbar Keyboard Navigation | | - | | |
| Bookmarks Toolbar Restyled | | - | | |
| Bookmarks menu | | - | | |
| Bookmarks toolbar toggle button | | - | | |
| BookmarksDropDown | | - | | |
| Bottom Tabs | | - | | |
| Bottom UI | | - | | |
| Browse By Name | | - | | |
| Browse Later | | - | | |
| Bug 566510 - Allow multiselect operations on tabs | | - | | |
| Buttons Back | | - | | |
| Bynames | | - | | |
| CLUT： Cycle Last Used Tabs | | - | | |
| Candy Tabs | | - | | |
| CaretTab - New Tab Clock and Date | | - | | |
| Change Default Search Engine | | - | | |
| Classic Compact Options | | - | | |
| Classic Newtab Restored | | - | | |
| Classic Opera | | - | | |
| Classic Reload-Stop-Go Button | | - | | |
| Classic Style for Favicons | | - | | |
| Classic Theme Restorer | | - | | |
| Classic Toolbar Buttons | | - | | |
| Classical Search Bar | | - | | |
| CleanupTabs | | - | | |
| Clear Fields | | - | | |
| Clear New Tab | | - | | |
| Clear Search 2 | | - | | |
| Clear Search Bar Text On Search | | - | | |
| Clear Tabs | | - | | |
| ClearSearch | | - | | |
| ClearWebStats Site Report | | - | | |
| ClickTabMove | | - | | |
| ClickTabSort | | - | | |
| ClickTabUniq | |
