Browser extensions starting with U

205 browser extension security reviews, listed by name.

  1. URL Shortener

    Wilson

    Medium
  2. Use Google Chrome™ as PDF Editor

    PDFzorro.com

    Clean

    PDF Editor Extension - PDFzorro uploads active-tab PDFs and screenshots to PDFzorro for conversion.

  3. URL Extractor

    Clean

    URL Extractor collects hyperlinks from each HTTP or HTTPS page you open and saves them in extension-local storage.

  4. UTN.BA Helper

    Pablo Matias Gomez

    Low

    UTN.BA Helper uploads hashed student IDs, academic data, class schedules, and survey responses to its developer backend.

  5. Udemy Course Downloader

    devtool ai

    Low

    Udemy Course Downloader opens an affiliate tracking tab on install and when downloads start.

  6. UiPath Browser Automation 23.4

    UiPath

    Clean

    UiPath Browser Automation reads and modifies content on any page under the control of the local UiPath Studio desktop app.

  7. Ultra Volume Booster

    Trevis Diaz

    Low

    Ultra Volume Booster captures tab audio to amplify volume and sends usage telemetry to Google Analytics on startup and hourly.

  8. UltraWide Streaming: custom ratios [QVI]

    Streaming Extensions · Entertainment

    Low

    UltraWide Streaming sends Disney+ and Amazon/Prime Video account, profile, and viewing data to me3x.online.

  9. Umbrella - Copy All URLs

    Clasicwebtools

    Clean

    Umbrella - Copy All URLs copies open tab titles and URLs to the clipboard when you trigger its copy action.

  10. UrbanTabs

    pietechologiesinc

    Medium

    UrbanTabs sends searches typed on its new-tab page to bseeksrc.com.

  11. URL Shortener

    ExtAdmin

    High
  12. UserGuiding+

    userguidingdevelopers · Workflow & Planning

    Clean

    UserGuiding - Better User Onboarding runs its editor on all sites and loads project data from UserGuiding APIs.

  13. User-Agent Switcher

    Linder

    Low

    User-Agent Switcher writes the configured UA string to each page's localStorage, where any page script can read it.

  14. URL Scanner

    D09r

    Medium

    Malware & URL Scanner sends scanned URLs and domains to multiple reputation APIs, including several over HTTP.

  15. UAR_SKT

    CISOLUTIONS

    Medium

    UAR_SKT captures the full page DOM on every navigation and forwards matching URLs to a locally installed SKT corporate management application via native messaging.

  16. URL Scanner and QR Codes

    QuickQRCode · Accessibility

    Medium
  17. USU Smart Alert Extension

    USU GmbH

    Clean

    USU Smart Alert Extension sends the URL, page title, and browser identity to a native messaging host on every tab visit.

  18. UWorld2Anki

    Adel Hassan

    Clean

    UWorld2Anki sends clicked UWorld question IDs to a local Anki helper.

  19. Udemy Subtitle Translator - Yakuu

    Orz99 · Education

    Clean

    Udemy Subtitle Translator - Yakuu sends Udemy subtitle text to Google Translate for automatic translation.

  20. UfunR

    UfunR

    Clean

    UfunR routes selected Chinese media-service traffic through the proxy chrome.paymentwiser.com:7777.

  21. UiPath Web Automation 22.4

    UiPath

    Clean

    UiPath Web Automation injects into all web pages, captures user interactions, and relays them to a local UiPath robot via native messaging.

  22. Ultimate Basketball Fan Extension

    office@searchologic.com · Entertainment

    Medium

    Ultimate Basketball Fan Extension sends new-tab search queries to search.basketball-fan.com with a tracking ID.

  23. Ultimate UK Visa Sponsor Checker

    uh1bscx

    Low

    Ultimate UK Visa Sponsor Checker loads third-party donation images into job-site pages where it displays results.

  24. UltraBlock

    Ninble · Privacy & Security

    High

    UltraBlock sends each visited page URL and a persistent device ID to api.ultrablock.org as tabs finish loading.

  25. Umbra Dark Mode

    Forest Rasmussen

    Low

    Umbra Dark Mode copies cross-origin stylesheet text into page-readable style elements on every site.

  26. Undetectable AI - Human Auto Typer

    ud-devs

    Clean

    Undetectable AI - Human Auto Typer sends Google Docs text to its Human Typer backend during typing and humanization.

  27. Unfolks - Find who doesn't follow you back on Instagram!

    Özgür ÖZALP · Social & Communication

    Low

    Unfolks reports Instagram workflow errors to Sentry with the current page URL, referrer, and user-agent context.

  28. Unielon

    dogeuni.com

    Low

    Unielon has no dynamically confirmed privacy or security findings in this scanner.

  29. UpDog - TikTok & Instagram Analytics

    UpDog Marketing · Social & Communication

    Low

    UpDog - TikTok & Instagram Analytics sends the signed-in Instagram username to a Supabase endpoint.

  30. Upload to Google Drive™

    Milext.com · Tools

    Clean

    Upload to Google Drive captures a user-triggered screenshot of the active tab and uploads it to Google Drive.

  31. uTorrent

    DeepSeek · Functionality

    Medium

    Utorrent For Chrome sends saved uTorrent Basic Auth credentials to non-magnet links opened from its context menu.

  32. unFunnelizer

    Rhea Victor

    Medium

    unFunnelizer sends video download and conversion page URLs to Google Analytics and its backend.

  33. UBC Workday Side by Side Calendar

    martinlou2002

    Low

    UBC Workday Side by Side Calendar copies MyWorkday cookies into browser request header rules.

  34. URL Shortener & QR Code Generator - QuickLink

    Tim Peters · Workflow & Planning

    Clean

    QuickLink sends the active tab URL to is.gd to create shortened links and shortened QR codes.

  35. UiPath

    UiPath

    Low

    UiPath downloads and executes JavaScript code supplied by a local native host in both its background page and every web page visited.

  36. Under New Management

    Class V LLC

    Clean

    Under New Management sends installed extension IDs to ExtensionBoost for developer-change checks.

  37. User Presence for MS Teams Web Client

    iamacarpet

    Clean

    User Presence for MS Teams Web Client injects periodic mousemove events into Teams tabs to keep status available.

  38. UFABC next - extensão

    ufabcnext

    High

    UFABC next sends university session cookies and page tokens to api.v2.ufabcnext.com.

  39. UNISPY: Shopify Inspector Sales Tracking Spy

    unispy.io

    Clean

    UNISPY scans Shopify pages, stores catalog data locally, and sends visited store domains to Similarweb.

  40. URL Link Previews for Gmail™ by cloudHQ

    cloudHQ · Communication

    Clean

    URL Link Previews for Gmail by cloudHQ sends compose links and clipped page metadata to cloudHQ services.

  41. Unblock Bilibili-海外解锁B站,免费解除地区限制,观看体育赛事直播

    六毫秒

    Clean

    Unblock Bilibili can disable other enabled proxy extensions from its popup.

  42. UpSearches

    upsearches · Workflow & Planning

    Medium

    UpSearches sends search-event telemetry with persistent identifiers to webinline-usage.streamesh.net.

  43. UchiHelper

    OKExtensions

    Medium

    UchiHelper sends Uchi.ru access tokens and uid cookies to dz-helper.ru while automating exercises.

  44. Unfollow AI - Followers & Unfollowers Tracker

    yasin.muratogullari

    Low

    IG Unfollow AI exposes an analyzer page that reads Instagram follower lists and sends avatar URLs to proxy.lazytech.workers.dev.

  45. Unikey - IME tiếng Việt cho ChromeOS

    Lê Quốc Tuấn

    Clean

    Unikey processes typed characters locally to compose Vietnamese text in ChromeOS input fields.

  46. UnlockTube - ВПН для YouTube без ограничений в России. Ускорить Ютуб на ПК

    katia.noomova

    Low

    UnlockTube routes selected YouTube and Telegram domains through bundled proxy servers when its VPN mode is on.

  47. Usersnap - Capture visual feedback & bugs

    Usersnap GmbH

    Clean

    Usersnap captures the active tab screenshot and URL when you use its feedback popup and passes them to app.usersnap.com.

  48. URL Auto Redirector

    crispgm

    Low

    URL Auto Redirector redirects some matching HTTPS pages to HTTP versions using its enabled default rules.

  49. USG Group User Cookie

    Clean

    USG Group User Cookie sets a persistent internal_user cookie on USG websites.

  50. Udio AI Music Generator

    Medium

    Udio AI Music Generator reads your Chrome profile ID and sends it to livepolls.app for extension login.

  51. UnInternet

    Nathan Miranda · Functionality

    Low

    UnInternet loads a remote Font Awesome stylesheet from cdnjs when its popup opens.

  52. Unfollowers for Instagram - Insta Detective

    Insta Detective

    Clean

    Unfollowers for Instagram - Insta Detective contacts a GetPantry basket from its popup feedback form.

  53. UpAlerts: AI Cover Letters

    Shajeel Afzal

    Medium

    UpAlerts: AI Cover Letters exposes its account email to scripts on Upwork, Fiverr, and LinkedIn through a page event bridge.

  54. UpLead - Find Emails on Websites

    UpLead

    Clean

    UpLead - Find Emails on Websites sends the active tab URL to Segment analytics when its popup opens.

  55. Urban View

    gnomiv1980

    Medium
  56. uDomainFlag

    bella.network

    Clean

    uDomainFlag sends each visited top-level domain with a persistent extension UUID to dfdata.bella.network.

  57. UI Kits (formerly Library) for Wix Editor

    Certified Code

    Low

    UI Kits for Wix Editor accepts Wix editor messages that write supplied component data to local storage and clipboard.

  58. URL Shortener - TinyURL Extension

    dev.bergda

    Clean

    URL Shortener - TinyURL Extension sends the current tab or clicked link URL to TinyURL when you shorten it.

  59. Udesly Template Configurator

    Udesly

    Clean

    Udesly Template Configurator reads Webflow project pages, CMS items, and member settings into a local export.

  60. Umami

    Umami · Household

    Clean

    Umami sends supported recipe-page URLs to www.umami.recipes to check whether they can be imported.