フリマ王-フリマ(メルカリ・ラクマ)で使えるコピー出品機能
メルカリ・ラクマ等の出品情報をワンクリックでコピーし、メルカリ・メルカリShops・ラクマ・ヤフオク・BASE・STORES・minne・Creema・PayPayフリマ・eBayなど複数のプラットフォームにコピー出品できる拡張機能です。大量出品の管理、一括値下げ、売上・利益の可視化にも対応しています。
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r⧸HFY epub companion
Companion to r/HFY epub generator. Allows to expand the functionality and bypass CORS restrictions.
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Udemy Course Downloader 2026
Download videos and text content from Udemy courses
Image Options
Adds options to the context menu to open an image in a new tab or to search it on Google. Source code : https://github.com/thom-s/ff-image-options
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humble bundle books downloader
An extension to download book bundles from HumbleBundle, in a zip archive.
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AliSave - Save AliExpress Images
Download AliExpress and Alibaba product description, images and videos with one click. The most popular tool.
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ChatIndex
Firefox sidebar to index, search, save, export, and transfer AI conversations across ChatGPT, Claude, Gemini, DeepSeek, and Perplexity.
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Image Downloader - Zip Convert & Compress
Scan images from any website, pick what you need, and download them all at once. Supports ZIP bulk downloads, image compression, and format conversion.
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ChatGPT Export to PDF
ChatGPT Export to PDF lets you quickly save active ChatGPT answers as PDF files. Download conversations with one click. Privacy-friendly — all operations are local, no data is collected or sent.
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Heero Video & Image Enhancer
Customise videos and images in real-time with Heero, a lightweight and intuitive tool that gives you control over YouTube and medias across the web.
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HLS Stream Downloader PRO
Automatically detect and download HLS (m3u8) video streams from any website. Supports quality selection, AES-128 decryption, and parallel downloading. Perfect for Vimeo, educational platforms, and streaming sites.
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Macabolic Browser Extension
Right-click any video link to download it instantly with the Macabolic macOS app. Supports YouTube and thousands of sites.
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PGP Suite – Encrypt Messages & Files
Encrypt, decrypt, sign and verify PGP messages and files in Firefox/Tor — no external apps needed. Generate key pairs, encrypt any file, secure emails and share files privately. Works with all PGP-compatible tools. No servers/tracking. Android works!
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GitHub Manager Upload and Download
A powerful Firefox add onn that lets you upload folders to GitHub and download repositories as ZIP files all without using Git commands
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Audiobook Downloader
Download audiobooks from archive.org with all chapters as mp3 files, cover photo and a chapters.json file for detailed chapter information. You can also choose to download the audiobook as a zip file for easier deployment on listening device later.
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DeepSeek Text Attach
Adds a button to insert text from a local file into a prompt on Deepseek. Which greatly speeds up file uploads instead of the usual server uploads.
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DownQ for Firefox
Your unofficial companion for managing Meta Quest game versions. Download specific releases, downgrade, and access DLCs with ease. Unofficial Firefox port by krxzyuzivr, based on DownQ/DownQuest by ptrpaws.
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