A visual cheat-sheet for the 116 keyboard shortcuts found in Firefox.
Ctrl Left — Back
Ctrl Right — Forward
Alt Home — Home
Ctrl O — Open File
Ctrl R — Reload
Ctrl Shift R — Reload (override cache)
Ctrl . — Stop
Tab — Focus Next Link or Input Field
Shift Tab — Focus Previous Link or Input Field
Space — Go Down a Screen
Shift Space — Go Up a Screen
Ctrl Down — Go to Bottom of Page
Ctrl Up — Go to Top of Page
F6 — Move to Next Frame
Shift F6 — Move to Previous Frame
Ctrl P — Print
Ctrl S — Save Page As
Ctrl + — Zoom In
Ctrl - — Zoom Out
Ctrl 0 — Zoom Reset
Ctrl C — Copy
Ctrl X — Cut
Backspace — Delete
Home — Go to Beginning of Line
End — Go to End of Line
Ctrl V — Paste
Ctrl Shift V — Paste (as plain text)
Ctrl Shift Z — Redo
Ctrl A — Select All
Ctrl Z — Undo
Ctrl F — Find
Ctrl G — Find Again
Ctrl Shift G — Find Previous
' — Quick Find within link-text only
/ — Quick Find
Esc — Close the Find or Quick Find bar
Ctrl K — Focus Search bar
Ctrl Up/Down — Change the Default Search Engine
Alt Up/Down — View menu to switch, add, or manage search engines
Ctrl W — Close Tab
Ctrl Shift W — Close Window
Ctrl Tab — Cycle through Tabs in Recently Used Order
Ctrl Q — Quit
Ctrl Alt Left — Go one Tab to the Left
Ctrl Alt Right — Go one Tab to the Right
Ctrl Shift PgUp — Move Tab Left
Ctrl Shift PgDown — Move Tab Right
Ctrl Shift Home — Move Tab in focus to start
Ctrl Shift End — Move Tab in focus to end
Ctrl M — Mute/Unmute Audio
Ctrl T — New Tab
Ctrl N — New Window
Ctrl Shift P — New Private Window
Alt Enter — Open Address in New Foreground Tab
Enter — Open Focused Bookmark or Link in Current Tab
Ctrl Enter — Open Focused Bookmark in New Foreground Tab
Ctrl Shift Enter — Open Focused Bookmark in New Background Tab
Ctrl Enter — Open Focused Link in New Background Tab
Shift Enter — Open Focused Bookmark or Link in New Window
Ctrl Shift T — Undo Close Tab
Ctrl Shift N — Undo Close Window
Ctrl 1-8 — Select Tab 1-8
Ctrl 9 — Select Last Tab
Ctrl Shift X — Moves the URL left or right
Ctrl Shift H — History sidebar
Ctrl Shift Delete — Clear Recent History
Ctrl Shift D — Bookmark All Tabs
Ctrl D — Bookmark This Page
Ctrl B — Bookmarks sidebar
Ctrl Shift S — Library window (Bookmarks)
(search field in Library) Space — Search for all Bookmarks
Ctrl J — Downloads
Ctrl Shift A — Add-ons
Ctrl Alt I — Toggle Developer Tools
Ctrl Alt K — Web Console
Ctrl Alt C — Inspector
Ctrl Alt S — Debugger
Shift F7 — Style Editor
Shift F5 — Profiler
Ctrl Alt E — Network
Shift F2 — Developer Toolbar
Ctrl Alt M — Responsive Design View
Shift F4 — Scratchpad
Ctrl U — Page Source
Ctrl Shift J — Browser Console
Ctrl I — Page Info
N/J/Right — Next page
P/K/Left — Previous page
Ctrl + — Zoom in
Ctrl - — Zoom out
Ctrl 0 — Automatic Zoom
R — Rotate the document clockwise
Ctrl R — Rotate counterclockwise
Ctrl Alt P — Switch to Presentation Mode
S — Choose Text Selection Tool
H — Choose Hand Tool
Ctrl Alt G — Focus the Page Number input box
Ctrl Enter — Complete .com address
Shift Enter — Complete .net address
Ctrl Shift Enter — Complete .org address
Shift Delete — Delete Selected Autocomplete Entry
Ctrl Shift F — Toggle Full Screen
Ctrl Alt R — Toggle Reader Mode
F7 — Caret Browsing
Ctrl L — Select Location Bar
Space — Toggle Play/Pause
Down — Decrease volume
Up — Increase volume
Ctrl Down — Mute audio
Ctrl Up — Unmute audio
Left — Seek back 15 seconds
Ctrl Left — Seek back 10%
Right — Seek forward 15 seconds
Ctrl Right — Seek forward 10%
Home — Seek to the beginning
End — Seek to the end