TenantTabs includes ExtPay.js 3.1.2 under LGPLv3 and webextension-polyfill 0.7.0 under MPL-2.0. TenantTabs' original application code remains proprietary. Recipients retain the rights granted by the component licences. Complete licence texts, the exact covered source and applicable build materials are supplied in this compliance source distribution. NOTICES.txt provides pinned public upstream downloads; source-provenance.json identifies the corresponding archives. TenantTabs 1.0.0 is published at: https://addons.mozilla.org/en-GB/firefox/addon/tenanttabs/ Its bundled vendor/NOTICE.txt links the source downloads and compliance page. Public compliance location: https://migotech-apps.github.io/TenantTabs/third-party/extpay/ Library modification/recombination instructions are in build-instructions.txt and REPLACEMENT.txt. The corresponding proprietary application is obtained only via its authorised distribution; it is not included in this repository. PERMISSION.txt describes the limited replacement rights already carried in vendor/NOTICE.txt. Modifying a signed XPI invalidates its signature. Temporary development loading is session-limited; permanent installation on release/beta Firefox normally requires Mozilla signing. No signing key or Mozilla approval is promised by these materials. The XPI supplies editable application files for the section 4(d)(0) route. See REPLACEMENT.txt for the conditional section 4(e)/GPL section 6 installation-information assessment. No legal certification is claimed.