High risk browser extensions

478 browser extensions our behavioural analysis rates high risk, with the evidence behind each verdict.

  1. Adblock for Youtube

    AdBlock Ltd.

    High

    Adblock for Youtube™ fetches remotely-controlled blocking rules and scriptlets from its own servers on every startup.

  2. Capital One Shopping

    Capital One Shopping · Shopping

    High
  3. Online Security

    ReasonLabs · Privacy & Security

    High

    Online Security reads up to 100,000 URLs from your browser history and sends them to a third-party server on every tab navigation.

  4. 1clickVPN

    1clickVPN

    High

    Free VPN for Chrome sends every URL you visit, along with referrer and timestamps, to the developer's own monitoring server.

  5. Loom

    Loom · Communication

    High

    Loom sends analytics events including your Segment identity and loom.com cookies to api.segment.io.

  6. WPS PDF

    www.wps.com · Tools

    High

    WPS PDF transmits persistent device and user identifiers to Google Analytics on every extension event.

  7. Hola VPN

    Hola VPN LTD. · Functionality

    High

    Hola VPN captures Chrome-internal identity headers from your Google requests and sends them to its servers every 10 minutes.

  8. Stands AdBlocker

    Stands · Tools

    High

    Stands AdBlocker transmits every page URL and referrer to standsapp.org on each navigation, linked to a persistent user ID.

  9. Rakuten

    Rakuten Ebates · Shopping

    High

    Code analysis indicates Rakuten captures the full HTML of your order confirmation pages and sends it to third-party servers.

  10. Bing Search

    Microsoft Corporation

    High

    Sets the browser homepage to Bing.com and adds one-click Bing search for highlighted text.

  11. BuyHatke

    Buyhatke

    High
  12. CSFloat

    CSFloat Inc. · Tools

    High
  13. Instant Data Scraper

    coder · Workflow & Planning

    High
  14. MyBib

    MyBib · Education

    High
  15. Ninja Connect

    MMT Network

    High
  16. SetupVPN

    SetupVPN Inc

    High

    SetupVPN encrypts all its API traffic with a per-request XOR key, making it impossible to inspect what data is being sent.

  17. Similarweb

    Similarweb

    High
  18. Video Downloader PLUS

    FDOWN

    High
  19. Merlin

    Foyer Tech

    High
  20. ModHeader

    ModHeader

    High
  21. UltraSurf

    Ultrareach · Privacy & Security

    High
  22. Smoothwall Cloud Filter

    Smoothwall

    High
  23. StayFocusd

    ST Pulse · Workflow & Planning

    High
  24. i芒果新标签

    High

    i芒果・新标签页 sends the URL of every tab you visit to mgtv.com servers, paired with a persistent device fingerprint.

  25. X-Audacity

    officeonlinesystems

    High

    Audio editor online X-Audacity transmits every visited URL, hex-encoded, to offidocs.com along with a persistent per-installation tracking ID.

  26. Save to Facebook

    Meta

    High
  27. TronLink

    Helix Tech Company Limited

    High
  28. Ginger

    Ginger Software · Workflow & Planning

    High
  29. Ad Blocker Pro

    AdBlock Inc.

    High
  30. Troywell VPN

    Privacy & Security

    High
  31. Jetwriter AI

    gourav.io

    High
  32. FVD Speed Dial

    Apptitude LLC · Accessibility

    High
  33. Ad Block Ninja

    Ninja Block

    High

    Ad Block Ninja records each top-level site visit and sends visited-domain history plus device fingerprint signals to ninja-block.com.

  34. Alitools

    BDT GROUP Sp. z o.o. · Shopping

    High
  35. Allow copy

    Allow copy&select · Accessibility

    High
  36. Flow

    FlowTeam

    High
  37. Smart Sidebar

    Chat GPT for Chrome with Claude & DeepSeek

    High
  38. Blockify

    ValueFoundry

    High
  39. SuperNova SWF Enabler

    Tactics Technology LLC

    High
  40. Qooly

    qooly · Tools

    High
  41. WhatRuns

    https://whatruns.com

    High
  42. Ad Block Wonder

    Wonder Block · Privacy & Security

    High
  43. Adblock

    adbloxteam · Privacy & Security

    High
  44. Email Tracker

    Email Tracker · Workflow & Planning

    High
  45. J2TEAM Security

    JUNO_OKYO

    High
  46. Jobright

    Jobright · Tools

    High
  47. Liner

    Liner · Workflow & Planning

    High

    Liner sends every visited page URL and Google search queries to its servers on each page load for logged-in users.

  48. Otter.ai

    Otter.ai · Workflow & Planning

    High
  49. Petra

    Aptos Labs

    High
  50. Popup Blocker Pro

    Popup Blocker Pro · Tools

    High
  51. RoValra

    Valra · Tools

    High
  52. Stop Ads Now

    Stop Ads

    High

    Stop Ads Now collects hardware fingerprints and visited domain history from every page and sends them to stopads-now.com.

  53. Urban Browser Guard

    Urban VPN · Privacy & Security

    High
  54. iTab

    xdlumia

    High
  55. Ad Block Genius

    AIvanlab

    High

    Blocks ads, video interruptions, and pop-ups while you browse the web.

  56. ApkOnline

    ApkOnline android online

    High
  57. Astar VPN

    https://astarvpn.com/index.html

    High
  58. Careerflow

    careerflow.ai · Workflow & Planning

    High
  59. Easy Video Downloader

    Yubi

    High
  60. Flash Player Emulator

    ModernKit.one

    High