Move tab in focus left

`Ctrl` + `Shift` + `Page Up`

All hotkeys for Firefox Quantum

Navigation Back	`Alt` + `←`
Navigation Back	`⬅ Backspace`
Navigation Forward	`Alt` + `→`
Navigation Forward	`↑ Shift` + `⬅ Backspace`
Navigation Home	`Alt` + `Home`
Navigation Reload	`F5`
Navigation Reload	`Ctrl` + `R`
Navigation Reload (override cache)	`Ctrl` + `F5`
Navigation Reload (override cache)	`Ctrl` + `↑ Shift` + `R`
Search Stop	`Esc`
Current page Go down a screen	`Page` + `↓`
Current page Go up a screen	`Page` + `↑`
Current page Go up a screen	`↑ Shift` + `Space`
Media shortcuts Go to bottom of page	`End`
Media shortcuts Go to top of page	`Home`
Miscellaneous Move to next frame	`F6`
Current page Go to previous frame	`↑ Shift` + `F6`
Current page Print	`Ctrl` + `P`
Current page Save page as	`Ctrl` + `S`
PDF Viewer Zoom in	`Ctrl` + `+`
PDF Viewer Zoom out	`Ctrl` + `-`
PDF Viewer Reset zoom	`Ctrl` + `0`
Editing Copy	`Ctrl` + `C`
Editing Cut	`Ctrl` + `X`
Miscellaneous Delete	`Del`
Editing Paste	`Ctrl` + `V`
Editing Paste as plain text	`Ctrl` + `↑ Shift` + `V`
Editing Redo	`Ctrl` + `Y`
Editing Select all	`Ctrl` + `A`
Editing Undo	`Ctrl` + `Z`
Search Find	`Ctrl` + `F`
Search Find again	`F3`
Search Find again	`Ctrl` + `G`
Search Find previous	`↑ Shift` + `F3`
Search Find previous	`Ctrl` + `↑ Shift` + `G`
Search Quick Find within link text only	`'`
Search Quick Find (When the Find or Quick Find bar is focused)	`/`
Search Focus search bar	`Ctrl` + `K`
Search Focus search bar	`Ctrl` + `E`
Search Quickly switch between search engines	`Ctrl` + `↑`
Media shortcuts Quickly switch between search engines	`Ctrl` + `↓`
Search View menu to switch, add or manage search engines	`Alt` + `↑`
Search View menu to switch, add or manage search engines	`Alt` + `↓`
Search View menu to switch, add or manage search engines	`F4`
Windows and tabs Close tab	`Ctrl` + `W`
Windows and tabs Close tab	`Ctrl` + `F4`
Windows and tabs Move tab in focus left	`Ctrl` + `Shift` + `Page Up`
Windows and tabs Move tab in focus right	`Ctrl` + `Shift` + `Page Down`
Windows and tabs Move tab in focus to start	`Ctrl` + `Home`
Windows and tabs Move tab in focus to end	`Ctrl` + `End`
Windows and tabs Mute / Unmute audio	`Ctrl` + `M`
Windows and tabs New tab	`Ctrl` + `T`
Windows and tabs New window	`Ctrl` + `N`
Windows and tabs New private window	`Ctrl` + `↑ Shift` + `P`
Windows and tabs Next tab	`Ctrl` + `⭾ Tab`
Windows and tabs Next tab	`Ctrl` + `Page Down`
Windows and tabs Open address in new tab	`Alt` + `⤶ Enter`
Windows and tabs Previous tab	`Ctrl` + `↑ Shift` + `⭾ Tab`
Windows and tabs Previous tab	`Ctrl` + `Page Up`
Windows and tabs Undo close tab	`Ctrl` + `↑ Shift` + `T`
Windows and tabs Undo close window	`Ctrl` + `↑ Shift` + `N`
Windows and tabs Select tab 1 to 8	`Ctrl` + `1`
Windows and tabs Select last tab	`Ctrl` + `9`
History History sidebar	`Ctrl` + `H`
History Library window (history)	`Ctrl` + `↑ Shift` + `H`
Bookmarks Bookmark all tabs	`Ctrl` + `↑ Shift` + `D`
Bookmarks Bookmark this page	`Ctrl` + `D`
Bookmarks Bookmarks sidebar	`Ctrl` + `B`
Bookmarks Bookmarks sidebar	`Ctrl` + `I`
Tools Downloads	`Ctrl` + `J`
Tools Add-ons	`Ctrl` + `↑ Shift` + `A`
Tools Toggle developer tools	`F12`
Tools Toggle developer tools	`Ctrl` + `↑ Shift` + `I`
Tools Web console	`Ctrl` + `↑ Shift` + `K`
Tools Inspector	`Ctrl` + `↑ Shift` + `C`
Tools Debugger	`Ctrl` + `↑ Shift` + `S`
Tools Style editor	`↑ Shift` + `F7`
Tools Profiler	`↑ Shift` + `F5`
Tools Network	`Ctrl` + `↑ Shift` + `Q`
Tools Developer toolbar	`↑ Shift` + `F2`
Tools Responsive Design View	`Ctrl` + `↑ Shift` + `M`
Tools Scratchpad	`↑ Shift` + `F4`
Tools Page source	`Ctrl` + `U`
Tools Browser console	`Ctrl` + `↑ Shift` + `J`
PDF Viewer Next page	`N`
PDF Viewer Next page	`J`
Media shortcuts Next page	`→`
PDF Viewer Previous page	`P`
PDF Viewer Previous page	`K`
Media shortcuts Previous page	`←`
PDF Viewer Rotate the document clockwise	`R`
PDF Viewer Rotate counterclockwise	`↑ Shift` + `R`
PDF Viewer Switch to Presentation Mode	`Ctrl` + `Alt` + `P`
PDF Viewer Toggle hand tool	`H`
PDF Viewer Focus the Page Number input box	`Ctrl` + `Alt` + `G`
Miscellaneous Complete .com address	`Ctrl` + `⤶ Enter`
Miscellaneous Complete .net address	`↑ Shift` + `⤶ Enter`
Miscellaneous Complete .org address	`Ctrl` + `↑ Shift` + `⤶ Enter`
Miscellaneous Toggle full screen	`F11`
Miscellaneous Toggle Reader Mode	`Ctrl` + `Alt` + `R`
Miscellaneous Caret browsing	`F7`
Miscellaneous Select Location Bar	`Alt` + `D`
Miscellaneous Select Location Bar	`Ctrl` + `L`
Media shortcuts Toggle play / pause	`Space`
Media shortcuts Decrease volume	`↓`
Media shortcuts Increase volume	`↑`
Media shortcuts Seek back 10%	`Ctrl` + `←`
Media shortcuts Seek forward 10%	`Ctrl` + `→`