Tiny Link Hints от eerichmond33

Tiny Link Hints adds lightweight keyboard navigation to web pages. Press your configured modifier key with J, K, or L to show short hint labels on visible links, buttons, inputs, text areas, selects, and editable text boxes. Type a label to activate the matching target, open a link in a background tab, or open it in a foreground tab. The modifier key can be changed from the options page. The extension stores only that local preference and does not collect or transmit data.