Firefox settings

Extensions are not allowed to open built-in about: pages (Settings, Add-ons manager, etc.). Use the shortcuts below or the Firefox menu instead.

Settings

Ctrl + ,  ·  Windows / Linux
⌘ + ,  ·  macOS
Or menu: ☰ → Settings

Website shortcut tiles

On the new tab page, use Edit shortcuts at the bottom of the card, or open Add-ons → New Tab → ⋯ → Options (this extension’s settings tab).

Add-ons manager

Ctrl + Shift + A  ·  Windows / Linux
⌘ + Shift + A  ·  macOS
Or use the Add-ons quick link on the new tab (opens Mozilla Add-ons in a tab).