Browser extensions starting with U

This extension notifies Facebook users when someone removes them as a friend.

UpNote Web Clipper reads the page DOM, title, URL, and selected text and passes them to the locally installed UpNote app on user click.

uCertify Proctoring uploads webcam, ID photos and screenshots, and streams your screen, to uCertify servers during exams.

Controls which websites can load cookies, scripts, images, frames, and other request types.

uBlacklist filters search results on Google and other engines using user-maintained or subscription blocklists.

Udemy Dual Subtitles sends tab URL, tab title, and a persistent user UUID to its own backend and to Amplitude on every subtitle translation request.

Shows H1B sponsorship badges on job listings for LinkedIn, Indeed, and Glassdoor.

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

Undetectable AI sends selected page text to its detection, humanizing, paraphrasing, and citation endpoints when you use its tools.

Reopen recently closed tabs from a toolbar popup.

Unfollower Tracker for IG receives server-controlled extraction patterns and can open arbitrary URLs on command from besocial.top.

This extension unsaves and downloads Instagram posts from a collection or prior selection.

Change the browser user agent from a toolbar popup using preset mobile, desktop, and operating system options.

Userlane transmits visited URLs and user identifiers to its servers and sends session tokens as metadata to a third-party error tracker.

UnTrap for YouTube stores PRO account passwords in plaintext and sends them to its servers on every sync request.

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

Hides YouTube comments and live chat on YouTube pages.

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

USC Schedule Helper saves notification email and phone entries in USC WebReg page storage.

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

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

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

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

UltraWide Streaming uploads streaming account details and viewing history from eight services to me3x.online.

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

Bulk-leave multiple Discord servers from the Discord web app in one action.

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

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

Hides unwanted Twitch streams, categories, channels, tags, reruns, and title matches from supported Twitch pages.

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

This extension shortens long web links into shareable URLs from the Chrome toolbar.

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

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

This extension helps users with trading-related activities and launching memecoins.

Adds a Google search option that automatically includes the udm=14 parameter.

Resizes web videos to reduce black bars and fill the screen.

Control which websites can connect, load resources, run scripts, and use cookies through a point-and-click matrix.

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

This extension turns the current page URL into a QR code for scanning on another device.

Creates a BibTeX entry from the URL and title of the current browser tab.

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

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.

This extension adds visual styling to HTML elements to make page layout boundaries easier to see.

Changes parts of Reddit’s user interface on Reddit pages.

This extension redirects closed UNIX Auto tabs back to the page that opened the function.

Blocks URLs that match user-defined regular expression blacklist rules.

Adds the current page’s URL information to the browser window title.

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

Builds UTM-tagged tracking URLs for analytics campaigns from the browser.

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

Resets progress for a Udemy course from the extension popup.

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

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

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

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

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