Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Fallout Cursor - Custom Game Cursor for Chrome [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• Privacy policy is Google's own policy — not scoped to this extension, admits data collection and 3rd-party sharing: +10.0 privacy pillar.
• Uninstall URL hijack to tabplugins.com and install URL hijack to tabplugins.com — classic monetization shell signals.
• scripting + *://*/*onfigure content scripts on every page: high-reach capability from a free-webmail developer with no stated developer name.
• Free-webmail developer (mbilalshah0001@gmail.com), no developer name — reputation floor triggered.

Evidence

• uninstall_url_hijack crx chrome.runtime.setUninstallURL → https://tabplugins.com/cursors/ (3rd-party monetization site).
• install_url_hijack crx onInstalled opens https://tabplugins.com/fallout-cursor-... (3rd-party redirect on install).
• privacy_policy_generic store Policy is Google account privacy page — scope_extension=false, data_collection=true, third_party_sharing=true.
• free_webmail_no_devname store Developer email mbilalshah0001@gmail.com; developer_name empty; no business website verifiable.
• host_permissions_broad manifest *://*/* combined with scripting permission allows JS injection into every site visited.
• dom_sink_innerhtml crx innerHTML assigned from variable in main.4964ab1e.js — DOM-XSS sink with no CSP.
• install_perm_anomaly api Only 408 installs but has HIGH-tier permission (scripting + *://*/*) — small_install_high_perm=true.
• verified_publisher store verified_publisher=true; however no recognized org, free-webmail email, limits discount applicability.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Fallout Cursor - Custom Game Cursor for Chrome [adware] + malext.io malicious_extension_sentry; score 7.63 -> 10.00 (+2.5 cap 2.5).

Permissions Breakdown

• storage low Standard local persistence; low standalone risk.
• unlimitedStorage low Allows large local storage quota; low risk for cursor assets.
• scripting high Can inject JS into all pages via host_permissions *://*/*; significant capability.
• *://*/* (host_permissions) high Broad host access paired with scripting — can read/modify any page content.

Pillar Scores

Bookkeeping