1.3.2 — Firefox compatibility fixes

• Popup width: removed max-width:100vw circular dependency so the action panel is a true 360px (was collapsing to ~36px).
• Pre-navigation blocking: no longer relies on tabs.Tab.pendingUrl (unsupported on Firefox). Navigation intent is tracked per tab so redirects and History changes stay accurate.
• Same visual design, permissions, and local-only analysis as 1.3.1. Validated on Firefox 155 with addons-linter clean (0 errors/warnings).