Top Risks

• Uninstall URL hijack sends users to chromewallpaper.com — classic monetization/tracking funnel.
• Install URL hijack opens third-party page on install — data collection without consent.
• Privacy policy is Google's generic account policy — not scoped to this extension, admits data collection and third-party sharing.
• NewTab override + search permission with free-webmail dev, no verified publisher, no developer name — high identity risk.
• External JS hosts include Netflix, YouTube, Instagram, X, ChatGPT — unexplained broad network surface for a wallpaper extension.

Evidence

• uninstall_url_hijack crx chrome.runtime.setUninstallURL → https://chromewallpaper.com/uninstall; monetization/tracking fingerprint.
• install_url_hijack crx onInstalled opens https://chromewallpaper.com/bakuman-wallpapers-manga-creator-backgrounds.
• newtab_override manifest chrome_url_overrides.newtab = index.html; replaces every new tab for all users.
• privacy_policy_generic store Policy is Google account privacy page: scope_extension=false, data_collection=true, third_party_sharing=true.
• developer_identity store Free-webmail dev (gmail), no developer name, no verified publisher badge.
• js_external_hosts crx 8 external hosts including netflix.com, instagram.com, x.com, chatgpt.com — unexplained for wallpaper extension.
• search_permission manifest search permission declared alongside newtab override — search monetization pattern.
• no_csp manifest content_security_policy is null; no CSP defined in MV3 extension.

Permissions Breakdown

• search medium Allows overriding search provider; medium risk on its own but paired with newtab override amplifies risk.
• chrome_url_overrides.newtab medium Replaces new tab page; primary monetization surface for this extension type.

Pillar Scores

Bookkeeping