| Close Other Tabs Menu | | - | | |
| Close Other Windows | | - | | |
| Close Repeated Tabs | | - | | |
| Close Tab By Double Click | | - | | |
| Close Tab Context Menu | | - | | |
| Close Tab History Button | | - | | |
| Close Tab ＃ | | - | | |
| Close Tabs to the Left | | - | | |
| Close Tabs to the Left (799202) | | - | | |
| Close Tabs to the Right | | - | | |
| Close Tabs to the right Button | | - | | |
| Close Tabs to the right button | | - | | |
| Close Unused Blank Tabs | | - | | |
| Close Window Button | | - | | |
| Close current Tab | | - | | |
| Close duplicate tabs | | - | | |
| Close last tab with middle-click | | - | | |
| Close other tabs | | - | | |
| Close tabs by... | | - | | |
| Close tabs to the left | | - | | |
| Close unused blank tabs Plus | | - | | |
| CloseBack | | - | | |
| CloseSign | | - | | |
| Color Tailor | | - | | |
| ColorfulTabs | | - | | |
| Colorlicious | | - | | |
| Coloured scrollbars | | - | | |
| Compact Menu 2 | | - | | |
| Compact Tabs | | - | | |
| Complete Theme Helper | | - | | |
| Compress Bookmarks Bar | | - | | |
| Container Tabs Sidebar | | - | | |
| Containers On The Go | | - | | |
| Containers Theme | | - | | |
| Content Toolbar | | - | | |
| Context Search Histry | | - | | |
| Cookie Manager Button | | - | | |
| Copy All Tabs | | - | | |
| Copy My Titles | | - | | |
| Copy Page Title (WebExtension) | | - | | |
| Copy Selected | | - | | |
| Copy Selected Tabs to Clipboard | | - | | |
| Copy Tab Button | | - | | |
| Copy Tab Location | | - | | |
| Copy Tab Name | | - | | |
| Copy Tab URL | | - | | |
| Copy Tab URL (847973) | | - | | |
| Copy URL + Title | | - | | |
| Ctrl-Tab | | - | | |
| Ctrl-Z | | - | | |
