Top Risks

• DeepSeek brand impersonation by unverified gmail developer — confirmed is_impersonation=true with no verified ownership.
• Privacy policy is Google's own policy (scope_extension=false, data_collection=true, third_party_sharing=true) — scores maximum privacy risk.
• Extension contacts anthonyc.gumroad.com (commercial/monetization platform) alongside chat.deepseek.com with no CSP.
• Free-webmail developer (gmail) with no business website, low installs, and below-average rating raises accountability concerns.
• Stale 16 months with no CSP and AI category — content scripts on DeepSeek chat sessions could exfiltrate conversation data if compromised.

Evidence

• brand_impersonation store brand_mention.is_impersonation=true; brands_mentioned=['deepseek']; developer_domain=gmail.com; confirmed_owner=false.
• privacy_policy_generic store Policy URL is Google account policy; scope_extension=false, data_collection=true, third_party_sharing=true — triggers +10.0 privacy.
• free_webmail_developer store Developer email anthony.cardinale06+cws@gmail.com; no verified publisher; no business domain; developer_name='Anthony'.
• gumroad_external_host crx js_external_hosts includes anthonyc.gumroad.com — commercial storefront, possible monetization/upsell vector.
• no_csp manifest content_security_policy=null on MV3 extension with external host contacts; v2 fix (b) does not apply to MV3 but raises exposure.
• ai_extension_page_content manifest Content script on chat.deepseek.com/* processes AI session content; is_ai_extension=true adds Webstore +2.5.
• maintenance_stale store months_since_update=16; falls in 12-24mo band → +6.0 maintenance.
• low_rating store Rating 3.2; rating_count unknown; below average for category.

Permissions Breakdown

• activeTab medium Grants access to the active tab on user action; scoped, but combined with content_script on chat.deepseek.com.
• content_scripts: https://chat.deepseek.com/* medium Injects JS into DeepSeek chat pages; narrow scope limits blast radius but touches AI session data.

Pillar Scores

Bookkeeping