Browser extensions starting with F

Converts YouTube and Twitch videos into short-form clips for TikTok, Instagram Reels, and YouTube Shorts.

Transcribes audio and video into text with translation, summaries, subtitles, and export options.

This extension lets users read, edit, convert, merge, compress, protect, translate, and summarize PDF files in Chrome.

Free Phone Number Finder scans the active page for phone numbers and displays them in its popup.

Free Photo Editor sends user-selected image URLs to the-image-editor.com from context menu actions.

This extension provides a scientific calculator that runs directly in the browser.

Free Turbo Comment Export Tool sends Instagram commenter avatar URLs to igimg.hubext.com during comment export.

Free VPN Premium for Chrome - OnVPN sends each completed top-level navigation URL to www.runapps.org with a persistent user ID.

Edit live web pages or local HTML files visually in the browser and export standalone HTML files.

Automatically cycles and refreshes tabs in selected browser windows.

Freelancer Helper sends project details and profile fields to freelancerhelper.click when generating AI bids.

Keeps Google Meet video frozen on a still frame while keeping the microphone status live.

This extension provides access to a Friday Night Funkin rhythm game experience in the browser.

Shows a Letterboxd rating histogram and average for users you follow.

Play a fruit-slicing action game in Chrome with different game modes.

Adds a full-screen button for compatible HTML5 videos that do not offer one.

This extension opens the current web page in full-screen mode with a toolbar icon click.

Play eight classic mini-games from the browser toolbar without signing in or opening a new tab.

Funny Gru rewrites images, backgrounds, cursor styling, audio, and new-tab pages across all websites.

Adds a browser-playable quirky first-person shooter with absurd enemies, weapons, levels, and upgrades.

This extension adds browsing tools for FurAffinity.net, including file saving, gallery tab opening, and keyboard shortcuts.

This extension toggles furigana visibility on websites so you can read kanji with less guidance.

Fuse Flow sends searches, selected page text, and active tab titles to the user's Fuse tenant APIs.

Creates image galleries by incrementing or decrementing numbered image URLs.

ff2mpv sends user-selected page, link, media, frame, or text URLs to the local ff2mpv native host.

find-your-product-on-meesho injects a Meesho inventory banner controlled by GitHub JSON and tracks banner events with Mixpanel.

firestore export in one-click sends sample Firestore export data and Firebase context to Mixpanel during exports.

Exports Flomo notes as Markdown files and copies Markdown notes to the clipboard.

fnaf 4 online sends a persistent extension UUID and game or notification interaction events to yoki.games.

fontSwap sends extension error reports that can include the current tab URL to a Cloudflare Worker.

Enables connections to Bluetooth devices through WebHID for device control and firmware updates.

fubukicss-tool redirects and rewrites Figma application scripts using rules fetched from ecomfe.github.io.

Changes Persian, Arabic, Kurdish, and Dari text fonts across websites for easier reading.

This extension blocks Facebook Messenger read receipts from being sent.

Fake Data embeds OAuth client secrets for Google Sheets and Fake Data API token exchanges in its extension package.

Downloads text, images, and attached files from FANBOX pages through the right-click menu.

Fleetyards Sync lets Fleetyards pages request RSI identity and pledge-page data using your RSI cookie.

This extension manages and runs user scripts and user styles in Firefox.

Captures full-page, visible-area, region, or scrolling-selection screenshots to the clipboard or a PNG file.

Flickr Size Pickr injects Flickr API image URLs into the active Flickr tab without escaping them.

Feature Queries Manager reads CSS @supports rules and stylesheet URLs from pages opened in its DevTools panel.

FACEIT Lobby King Extension forwards FACEIT match details and player IDs to lobbyking.app during lobby analysis.

Free Visio Viewer uploads user-selected Visio files to Lucid for conversion.

Preloads likely next pages when you hover links to make navigation feel faster.

Reports a randomized font fingerprint value when webpages check browser fonts.

Shows available RSS and Atom feeds in the URL bar and opens feed previews in Firefox.

This extension enables PAdES and XAdES document signing for DOCAPOSTE FAST services.

Foxtana Pro rewrites Bing search URLs to a chosen search engine and forces custom search redirects to HTTP.

Folx 5 forwards download URLs, referrers, and cookies to the local Folx download handler.

Adds download buttons on Fantia image areas to save post images as ZIP files.

Shows websites in fullscreen without the address bar or tabs bar.

Enables Firefox First Party Isolation to separate browser identifiers by the site in the address bar.

This extension lets you customize website favicons to distinguish between multiple copies of similar sites.

Feedly Mini sends the active tab's URL and full page HTML to Feedly when its popup optimization runs.

Free Android online emulator ApkOnline sends non-ApkOnline tab URLs with a persistent user ID to www.uptoplay.net.

This extension bypasses CHZZK grid software to support high-quality streaming on chzzk.naver.com.

Furigana converts Japanese page text into parsed HTML, so page text containing markup can become live DOM elements.

Finds free VPN Gate OpenVPN servers and downloads OVPN configuration files.

Converts PDFs and common document formats from a browser start page.

Searches a large list of Netflix secret categories from the browser toolbar.