Track It — Right-click Package Tracking por brideaud

No login or account is required to test this add-on.
How to test:
1. Install the add-on.
2. On any web page, right-click a tracking number (or hover over one and
right-click without selecting) and choose "Track shipment" > "Auto-detect".
A new window opens on the detected carrier's tracking page.
Sample numbers that demonstrate carrier routing:
- UPS: 1Z999AA10123456784 (opens ups.com tracking)
- USPS: 9400111899223817567891 (opens usps.com tracking)
- FedEx: 231300687629631 (opens fedex.com tracking)
(Sample numbers may show "not found" on the carrier site — that is expected;
they exist only to show that each format routes to the correct carrier.)
Permissions note:
- The <all_urls> content script exists solely to read the tracking-number token
under the mouse pointer at right-click time, so the user doesn't have to
select it first. Nothing is stored, transmitted, or collected — see
data_collection_permissions: { required: ["none"] } in the manifest. The only
network activity is opening the carrier's own tracking URL in a new window
when the user clicks a menu item.