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This is a list of the most common mouse shortcuts in Mozilla Firefox.
| Command | Shortcut |
| Back | AltOpt+Scroll DownShift+Scroll Down |
| Close Tab | Middle-click on Tab |
| Decrease Text Size | Ctrl+Scroll up |
| Forward | AltOpt+Scroll up Shift+Scroll up |
| Increase Text Size | Ctrl+Scroll down |
| New Tab | Double-Click on Tab Bar |
| Open in Background Tab | CtrlCmd+Left-click Middle-click |
| Open in Foreground Tab | CtrlCmd+Shift+Left-click Shift+Middle-click |
| Open in New Window | Shift+Left-click |
| Paste URL and Go1 | Middle-click on Tab |
| Reload (override cache) | Shift+Reload button |
| Save Page As | AltOpt+Left-click |
| Scroll line by line | CtrlCmd+ScrollAltOpt+Scroll |
| Command | Shortcut |
| Back | AltOpt+Scroll DownShift+Scroll Down |
| Forward | AltOpt+Scroll up Shift+Scroll up |
| Zoom In | Ctrl+Scroll up |
| Zoom Out | Ctrl+Scroll down |
| Close Tab | Middle-click on Tab |
| New Tab | Double-Click on Tab Bar |
| Open in Background Tab | CtrlCmd+Left-click Middle-click |
| Open in Foreground Tab | CtrlCmd+Shift+Left-click Shift+Middle-click |
| Open in New Window | Shift+Left-click |
| Copy Tab or Bookmark | Ctrl+DragN/A |
| Paste URL and Go1 | Middle-click on Tab |
| Reload (override cache) | Shift+Reload button |
| Save Page As | AltOpt+Left-clickN/A |
| Scroll line by line | CtrlCmd+ScrollAltOpt+Scroll |
1 By default clicking the middle mouse button on a tab closes the tab. If desired, you can change the middle-click behavior. Set the middlemouse.contentLoadURL preference to either true (for the Content Load URL feature) or false (for closing the selected tab).
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