Browser extensions starting with F
441 browser extension security reviews, listed by name.
Factiva Search for Business Intelligence
Dow Jones & Company, Inc.
CleanFactiva Search for Business Intelligence sends selected text or popup search terms to global.factiva.com when you start a search.
Fake-Shop Detector
ÖIAT – Forschungsprojekt SINBAD
MediumFamilycard.be
Shopping
CleanFamilycard.be sends the current shop URL path and detected adblocker or cashback extension names to Familycard.
Fanatical PC Game Price Comparison
Fanatical
CleanFanatical PC Game Price Comparison sends game page details and a persistent extension UID to Fanatical's lookup API.
FancyGPT
Viszen
HighFancyGPT sends saved ChatGPT conversation text to its Firebase Storage bucket when its chat editor opens.
FashionReps Link Converter
Discovery Tools
MediumFashionReps Link Converter rewrites shopping and registration pages to URLs with hardcoded referral codes.
Fast OCR
iDooy · Accessibility
LowFast OCR lets any website trigger its web-accessible OCR page to send supplied images to remote OCR services.
FastAccess SSO
Sensible Vision
CleanFastAccess Face Recognition Web Login reads login form credentials on all websites and forwards them to a locally-installed native application for face-recognition SSO.
FastVPN for Streaming
FastVPN · Privacy & Security
CleanFastVPN for Streaming sends its user token and saved proxy credentials to vpn.ncapi.io from its popup and service worker.
Feedly Notifier
Feedly Notifier developers · News & Weather
CleanFeedly Notifier sends each feed item's source site URL to i.olsh.me when rendering favicons in the popup.
Felo - Your Free AI Search Assistant
Felo株式会社 · Workflow & Planning
LowFelo accepts postMessage commands from any webpage with no origin check, letting that page probe URLs and check your X/Xiaohongshu login.
Find WA Link - Group Invite Link
whatsapp-leads
HighFind WhatsApp Link reads your WhatsApp account number and sends it to Aliyun Logs.
Firewall Bypass vu
Ragnar Lothbrok
MediumFirewall Bypass vu loads a remote jsPDF library from cdnjs into VULMS pages.
FSA
shanijangee007
CleanFiverr Seller Assistant sends Fiverr gig details and reciprocal view activity to fiverrpromotion.net.
FlareGet Integration
www.flareget.com
LowFlareGet Integration captures session cookies and POST form data from all sites and forwards them to the local FlareGet download manager.
Flash Player Extension For Web
Allen Alexis
MediumFlash Player Extension For Web sends page URLs and device/IP details to an Aliyun log endpoint.
FlashSale
BuyDekhke
MediumFlashSale AutoBuy sends shopping product URLs and popup tab details with stored location fields to buydekhke.com and unscart.com.
Flipkart Price Tracker
Solutions For People
LowFlipkart Price Tracker sends Flipkart product identifiers to a proxy service and BuyHatke lookup URLs.
Flow Wallet
play-store
MediumFlow Wallet stores Google Drive wallet backups with an encryption key shipped in the extension bundle.
Fluvi Wallet
FLUVI WALLET
LowFluvi Wallet exposes the selected wallet address to page scripts on every matched website.
Font Identifier by WhatFontIs
WhatFontis.com
CleanFont Identifier by WhatFontIs sends selected font renderings and image snippets to whatfontis.com for identification.
Force.com LOGINS
takasu.biz · Workflow & Planning
MediumForce.com LOGINS stores Salesforce account passwords in extension localStorage without protection by default.
Forg1 Points
Piso9 Studio
CleanForg1 Points sends Kick OAuth tokens and watchtime ticks for supported Kick streams to Forg1 servers.
Formatted Email Subject Lines by cloudHQ
cloudHQ · Communication
LowFormatted Email Subject Lines by cloudHQ sends your Gmail address and extension metadata to cloudHQ on Gmail load.
Foxit PDF Editor Cloud: Edit and Convert
Foxit Software
LowFoxit PDF Editor Cloud lets websites invoke its viewer to fetch a supplied URL and pass the response to Foxit cloud.
FrankerFaceZ Nightly
FrankerFaceZ
LowFrankerFaceZ Nightly exposes its Twitch bridge settings commands to parent-page messages without origin checks.
Free PDF Editor
Free Useful Apps
CleanFree PDF Editor uploads selected PDF files to api.pdfconverted.com before opening them in its web editor.
Free VPN Proxy
Muyor
CleanFree VPN Proxy routes browser traffic through a public proxy selected from remote proxy-list providers.
FreshySearch
Freshy · Tools
CleanFreshy Search redirects default-search queries to Freshy with a stored Freshy GUID.
Friend Maker | Toolkit for Facebook
Levels
HighFunpay extension
Lotti
MediumFuseBase Assistant - AI Chat and Agents
Nimbus Web Inc
LowFuseBase Assistant accepts session IDs from any webpage and sends them as Nimbus/FuseBase API headers.
WA Number Checker – Check WhatsApp Number Registration
wadeskzf · Tools
LowWhatsApp Number Checker sends your WhatsApp account ID and phone number to its service and Aliyun logging.
focusmode - Stay Focused, Be Present
https://focusmode.app · Workflow & Planning
Cleanfocusmode - Stay Focused, Be Present records per-site and per-path browsing dwell time in local extension storage.
fontDownloader
Brahmastra
LowfontDownloader sends the active tab's URL and a browser fingerprint to an external server every time a script error occurs.

Fetch Video Downloader
Hope
CleanFetch Video Downloader records media request URLs and selected headers to build its download list.

FoxClocks
Andy McDonald
LowFoxClocks sends clicked statusbar clock details from extension storage to the current page window.
Faceit elo statistics (CS:GO, CS 2)
iliyazelenkog · Games
CleanFaceit elo statistics sends searched FACEIT nicknames and profile metadata to Google Analytics.
FastApply - Free AI Automated Job Application Copilot
zionekekenta
MediumFastApply sends page error telemetry from most pages where its content script runs to its API.
Filtered Interview Tool
Filtered Dev Team
CleanFiltered Interview Tool sends the URLs and titles of other open tabs to Filtered during interview sessions.
Fishtank
Fishtank
CleanThis extension adds a personal digital aquarium that grows as you browse popular websites.
Flex Search Engine
CleanFlex Search Engine sends browser search terms to flexsearchengine.com through its default search provider.
FlixMiner
Mairo Vergara
CleanMine subtitles from movies and series while you keep watching.
FluentAI: Dual Subtitles for Netflix & more
FluentAI · Education
LowFluentAI accepts page messages that can trigger authenticated translation requests.
FocusMe
Reclaim Time Ltd
CleanFocusMe sends the active tab URL and title to its desktop app when tabs or windows change.
Free Chess Analysis
imlokesh
CleanFree Chess Analysis copies a user-clicked chess.com game PGN into lichess.org for analysis.
Free Medium Reader
Vu Huynh
LowFree Medium Reader sends the current page URL to freedium-mirror.cfd when its reader overlay opens.

Flight Details & Search
Flight Details & Search
CleanFlight Details & Search sends typed and default browser search terms to Yahoo Search affiliate endpoints.
FC 26 Sniping Bot - EAFC Sniper (Formerly Futsnipe)
store.futsnipe.com
MediumFC 26 Sniping Bot lets EA's web app read extension local-storage keys, including a saved login response.
FHD Bilibili Video Downloader
Jona. M
CleanFHD Bilibili Video Downloader sends Bilibili media URLs and page details to youtube4kdownloader.com after a download click.
FNAF Jump Scare
mesajonathan0
CleanFNAF Jump Scare injects a timed full-page jumpscare video overlay into the active tab across websites.
Facebook Ad Video Downloader & Ad Data Export
Adslibrary.ai
LowFacebook Ad Video Downloader & Ad Data Export lets any webpage trigger its logout and storage reset handler.
Fast Image Research
USA Cyborg
LowFast Image Research lets any website open reverse-image-search tabs after its optional JavaScript API is enabled.
File Centipede
namelessitguy2022 · Tools
CleanFile Centipede packages page URLs, cookies, referrers, headers, and stream keys for downloads sent to its local service.
FlowTime
FlowTime
CleanFlowTime redirects blocked tabs to flowtime.biz with the page URL, title, and favicon encoded in the query string.
Followers Tracker
https://extensionsbox.com
CleanFollowers Tracker reads your Instagram follower and following lists and stores derived relationship lists locally.
Fortect Browsing Protection
fortect-extensions
MediumFortect Browsing Protection sends your browser history, installed extensions, and Google account email to Fortect servers.
Free VPN for Chrome – GoVPN
Gowalk Inc.
MediumFree VPN for Chrome - GoVPN routes browser traffic through a hardcoded HTTP proxy while showing a 256-bit encryption status.
Free link shortener goo.su
CleanFree link shortener goo.su sends selected page, link, image, or active-tab URLs to goo.su when the user shortens them.
facebook video downloader - download video from facebook
aextools-saver
Cleanfacebook video downloader - download video from facebook reads Facebook media URLs and saves selected media locally.