Keyboard shortcuts

Browser commands

The manifest declares two commands. Both are handled by the service worker (browser.commands.onCommand, decision 90):

Command	Suggested key	Action
picker-start	Alt+Shift+P	Start the element picker in the active tab
picker-pause	Alt+Shift+Space	Pause the running picker, or resume it on the next press

A command acts only when all of these hold. Otherwise it does nothing and shows no message:

• Author mode is on (extension options).
• The active tab is an http or https page.
• The extension has access to that tab's site, by a grant from you or by managed policy.
• For picker-pause, a picker is already running in that tab.

picker-start starts the element mode, the same as the side panel's Pick element button. A pick is delivered to the studio field that asked for it, so open the studio on the item you are editing first; the shortcut is for re-arming the picker without moving to the side panel. Pausing hides the highlight and lets clicks through to the page; resuming restores picking. A page reload re-injects the picker unpaused.

Change the keys on chrome://extensions/shortcuts (or edge://extensions/shortcuts).

While the picker is running

The picker script handles its own keys on the page:

Key	Action
Esc	Stop picking
Alt+Shift+Space	Pause or resume picking, when the browser passes the key to the page

Gotchas

• Chrome may show a declared command as unassigned if the suggested key collides with another extension.
• While the command is assigned, the browser takes Alt+Shift+Space before the page sees it, so the worker handles it. The in-page handler is the fallback when the command is unassigned.
• Pause state lives in storage.session for the tab and is cleared when the picker stops, restarts or the tab closes.