v5.3.3 Firefox-only patch, two bugs fixed.

One. The suggested keyboard shortcut in the manifest was Ctrl plus Shift plus U, which Firefox reserves. Users reported it never worked. Now Alt plus Shift plus 1, matching Chrome and Edge.

Two. background.js called chrome.sidePanel.open on toolbar-button click, which is a Chromium-only API and silently failed on Firefox, so the sidebar never opened. Now uses browser.sidebarAction.open.

No new permissions.

v5.3.2: two screen-reader improvements to the findings-table results view.
• Affected component (CSS selector) is now part of every row's aria-label, so NVDA / JAWS users hear which element failed without expanding the row.
• New "Accessible PDF" button in the export toolbar. Opens a print-ready report in a new tab and auto-triggers window.print(); user picks "Save as PDF" as the destination. No new permissions.

v5.3.0 adds GIGW 3.0 and IS 17802 audit engines for India-specific accessibility standards, a VPAT 2.4 ACR exporter, and visual diffs on audit history. Same permissions as v5.2. No new outbound data flows.