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Firefox

Keyboard Shortcuts

Keyboard shortcuts for extensions can be changed from the menu "Manage extension shortcuts"

Mac Windows Detail Add-On
Cmd+Shift+S Ctrl+Shift+S Firefox screenshots native
Shift+Alt+X Shift+Alt+C New tab in same container Add-On::New container tab
Ctrl+C n/a New tab in a new container Add-On::Temporary Containers
n/a Alt+X New tab in a new container Add-On::Containers on the Go
Shift+Alt+1 Shift+Alt+1 Open OneTab Add-On::OneTab
Ctrl+Shift+, Ctrl+, Display sidebar Add-On::Sea Containers
Shift+Alt+Z Shift+Alt+Z Go to Zoom options Add-On::Zoom Page WE
Shift+Alt+L na Toggle JavaScript On/Off Add-On::JavaScript Toggle On and Off
n/a Ctrl+. Activate toolbar button Add-On::Firefox Multi-Account Containers
n/a Alt+A Go to Previous Tab Add-On::Vimium C
n/a Alt+C Go to Previous Tab Add-On::Vimium C
n/a Alt+Z Go to Next Tab Add-On::Vimium C
n/a Alt+V Go to Next Tab Add-On::Vimium C

Global zoom setting

The following setting governs both the content area and the "chrome" area (menus, toolbars, and tabs). You can adjust the value, but it might be > hard to find just the right number. There's a good chance it will end up being a compromise.

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste "pix" and pause while the list is filtered

(3) Double-click layout.css.devPixelsPerPx and change its value to 1.0 and click OK to save it. This will give you classic 96 dpi fonts. To > enlarge that by 10%, double-click and use 1.1 and click OK. And so on. You may want to switch around between windows and tabs to see how it's > affecting them.

Be careful not to choose a value between 0 and 1 or you might make the text unreadably small.

REF link : Wanting a different zoom level instead of 100% default zoom

Vimium C

Custom key mappings

(Only on Windows - Mappings with Alt don't seem to work on Mac)

unmap <a-s-c>
unmap <a-t>
unmap <t>
map <a-z> nextTab
map <a-a> previousTab

Add-ons

All computers

Containers

Bookmarks/History

Others

Windows #1

Containers

Privacy

Bookmarks/History

Windows #2

Containers

Mac:

Containers

Privacy

Bookmarks/History