Browser extensions starting with J

Joke Of The Day loads Google Fonts when its extension popup is opened.

Joois QuickShortener sends an install-time geolocation request to geoplugin.net over HTTP.

JoyaGoo Warm Reminder Remover rewrites supported shopping product URLs with hardcoded affiliate referral codes.

Juicebox Chrome Extension reads sender details from Gmail and Outlook threads and sends contact lookups to chat.juicebox.work.

Just Read posts shared reader-view pages, including the URL and article HTML, to justread.link for premium users.

Automatically finds coupons and cashback offers while you shop online.

JSON Diff sends user-entered web URLs to jsondiff.com when fetching comparison input.

JSONView temporarily routes Chrome update checks through agency.pictureknow.com when its version probe fails.

JSX Tool lets any webpage trigger its background script to open a localhost WebSocket connection.

Job Search Filter uploads applied LinkedIn job records to its HideJobs backend.

JobAdder for Gmail sends viewed Gmail message participant email addresses to JobAdder lookup APIs.

JoyLink reads Walmart Creator bonus payout progress from the page and sends it to api.joylink.io.

JoyTab - Your News Tab sends Chrome top-sites URLs to api.statvoo.com for favicon lookups.

JustParty sends visited page URLs, titles, and referrers from ordinary websites to Google Analytics.

JabRef Browser Extension sends page reference details to a local JabRef app when you trigger an export.

J7Extension captures Axiom tracked-wallet and own-wallet details for its local highlighting panel.

JD Data Extractor sends scraped JustDial lead data to a hardcoded HTTP server before export.

JDM Cursor inserts a visible style marker on every site that includes part of its extension ID.

JOIN Talent Sourcing sends imported LinkedIn candidate profile details to Segment analytics.

JOSEPHA sends the current page URL and location/account metadata to Firebase and PostHog during price searches.

JSON Compare sends user-entered HTTP(S) JSON URLs to jsondiff.com before comparing them.

JSON Crack Formatter sends the current page's raw JSON body to a jsoncrack.com widget when you click its button.

JSON Hero sends page JSON and supported metadata from the current tab to jsonhero.io.

JSON Tools sends popup page views, button clicks, and persistent client/session IDs to Google Analytics.

JSONGrid Web Inspector sends usage events with a persistent client identifier to Google Analytics.

JUAN marks crypto cashtags on X pages and exposes matching saved portfolio details in page DOM tooltips.

JW Web Add-on imports Google Fonts in its popup, sending a font request to Google when the control panel opens.

JWT Decoder stores user-entered JWTs in Chrome sync storage after decoding them.

Japanese Spring Live Wallpaper sends user-added shortcut URLs to Google to load favicon images.

Jinu - KPop Demon Hunters Live Wallpaper sends each new-tab shortcut URL to Google's favicon service.

Jisho-OJAD sends words from Jisho pages to OJAD to fetch pitch-accent annotations.

Jiten Reader sends Japanese text from pages you parse to api.jiten.moe for dictionary tokenization.

Job Scraper for LinkedIn sends LinkedIn job-search page URLs to Mixpanel when users use scraper controls.

JobFillr shows a success message that loads a Buy Me A Coffee image from cdn.buymeacoffee.com.

JobGlance sends visited job-posting details and a persistent extension UUID to its Supabase backend.

Jokes and Smiles - New Tab sends new-tab telemetry to Google Analytics and requests country data from ipapi.co.

Jotit stores user-entered two-factor authentication secrets in Chrome sync storage without encryption.

JoyaGoo Warn Reminder Remover rewrites product-page referral parameters on scoped shopping sites.

Jstris+ sends Jstris chat names, screenshots, and replay data to Jeague or fumen services when related features run.

Just The Instructions sends page text and a stored user ID to its AI extraction service when you press the GPT button.

JustSnipe eBay Auction Sniper sends the active tab URL to m.justsnipe.com whenever its toolbar popup opens.

JWT Debugger imports JWT-looking cookies and Web Storage values from the active tab into its popup debugger.

Join Cherry reads hotel, flight, and activity search details from booking sites and sends them to its server to find a cheaper price.

jp343 Track Your Japanese Immersion syncs watched and read page details to jp343.com when account sync is active.

Send browser downloads to a macOS download manager for faster, organized file saving.