Basic/Standard

Command Key Binding
Copy Ctrl + C
Paste Ctrl + V
Cut Ctrl + X
Undo Ctrl + Z
Redo Ctrl + Y
Select All Ctrl + A
Search Ctrl + F
Print Ctrl + P
Search and Replace Ctrl + H
Save File Ctrl + S
Save File as Ctrl + Shift + S

Youtube

Command Key Binding
Increase Speed Shift + >
Decrease Speed Shift + <
Toggle Mute M
Play/Pause K
Toggle Captions C
Full Screen F
Prev Frame ,
Next Frame .
Jump In Duration 0 - 9

Browser

Command Key Binding
New Tab Ctrl + T
Open Recent Closed Tab Ctrl + Shift + T
Refresh F5 / Ctrl + R
Select Address Bar F6
Focuse Next Tab Ctrl + Tab
Delete Focused Tab Ctrl + W
Next Tab Ctrl + Tab
Previous Tab Ctrl + Shift + Tab
Focus First Tab Ctrl + 1
Focus Second Tab Ctrl + 2
Focus Num’s Tab Ctrl + <num>
Focus Last Tab Ctrl + 9
Zoom In Ctrl + +
Zoom Out Ctrl + -
Reset Zoom Ctrl + 0
Prev Page Alt +
New Tab With Address Bar Content Alt + Enter
Scroll Down A Screen Space
Scroll Up A Screen Shift + Space
Nav Between Results F3 (after search)
Open Devtools F12