Browser Extension

Copyfish is OCR software for extracting, copying, and translating text from images, video, and PDF files.

GPTZero checks pasted text for AI generated content and provides an overall score with sentence level detection.

Vimium C provides keyboard shortcuts for browser navigation and tab operations, with an omnibar for browser commands.

Userscripts provides an open-source userscript manager for Safari, as described by its project page.

Magnifying Glass opens a magnifying-glass tool from the browser toolbar.

Promptly AI helps craft prompts, browse a prompt library, and export prompts for use with AI tools.

SalesAgent Chat provides live transcription and AI suggestions during sales calls.

Cookie-Editor lets users create, edit, and delete cookies for the current browser tab.

Dictionariez is a customizable browser dictionary extension with double-click lookups, multiple dictionaries, text-to-speech, and translation.

Use JShelter, a browser extension that mitigates JavaScript threats such as fingerprinting, tracking, and data collection.

Tab Stash saves open tabs so users can clear them and return to those pages later.

Download zoomable images from websites that use Zoomify, Deep Zoom and other supported viewers.

Measure surrounding sound levels in decibels using a computer microphone in this browser tool.

SB.js brings SponsorBlock to a bookmarklet or userscript for restrictive environments, with loader and standalone usage options.

Mask email and phone details with Firefox Relay, which forwards messages to a real inbox.

Mochii AI combines ChatGPT, Claude, and Gemini in a browser extension with custom characters and chatbot creation tools.

Scribens checks English grammar and spelling, including punctuation, agreement, conjugation, and word confusion.

Google Hit Hider by Domain is a search-filtering userscript listed on Greasy Fork; the supplied page does not detail its current behavior.

Find guides, tools, and tips for Roblox through the Roblox Den resource site.

Web Oasis serves as a starting page, and its supplied README also describes the project as a search engine for the web.

mymind saves notes, images, quotes, and highlights in a private space with AI-assisted organization.

Twitch-Live keeps viewers connected to favorite Twitch streams through a browser extension.

Wallet Guard was an open-source browser extension for detecting crypto scams and wallet drainers; its site says the service ended in March 2025.

Page Edit lets users make a webpage content-editable and modify it through a toolbar popup before saving or printing changes.