Web Archives
View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.
65,988 users
Google Scholar Button
Lookup scholarly articles as you browse the web.
99,338 users
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
69,035 users
Pix Companion
Browser extension for Pix
25,617 users
British-English Dictionary (GB)
A strict British-English spell checker dictionary for Firefox, Thunderbird and SeaMonkey. This dictionary only includes words conforming to the preferred standard of British-English spelling.
25,243 users
Linguist - web pages translator
Translate web pages, highlighted text, Netflix subtitles, private messages, speak text, and save important translations to your personal dictionary to learn words in 130 languages.
16,481 users
LibKey Nomad
One-click access to millions of scholarly articles.
11,166 users
Oxford English Spellchecker
A spellchecker for Oxford English.
9,608 users
Tasks for Canvas™
A better to-do list sidebar for Canvas. The Tasks browser extension for Canvas™ updates the Canvas dashboard sidebar to show all of your weekly assignments and track your progress throughout the week.
8,708 users
Voila – AI Assistant, Copilot and AI Writer
Seamless personal AI assistant powered by GPT-4o to help you create, write, summarize, brainstorm, and research Get things done with a simple keyboard shortcut – Improve your writing, get answers to all your questions and draft high-quality content.
3,572 users
Google Scholar search engine
Adds a search engine for Google Scholar (scholar.google.com).
3,264 users
AddToAny: Share Anywhere
Share to Facebook, Mastodon, WhatsApp, Telegram, LinkedIn, Teams, Threads, email, and any other sharing or saving service quickly and easily with one share button.
2,777 users
AI Toolbox
Ultimate AI assistant! Access all AIs anywhere and boost your productivity: ChatGPT, Gemini, DeepSeek, Grok, Copilot, Claude, Llama, Qwen, Mistral AI, Perplexity, Poe, Narrow AIs and much MORE! 💖 No user information is collected by the developer
2,528 users
doqment PDF Reader
Firefox's PDF Viewer with Reader Mode: change the colours of PDFs while reading.
2,048 users
Selectext: Copy Text from Videos
Copy text directly from videos on Youtube and any site
1,971 users
Chess.com analyse at lichess
Analyse chess.com game at lichess.org for free.
1,924 users
Superpower ChatGPT
ChatGPT with superpowers! Sync/search history locally, create folders, export all chats, pin messages, favorite prompts, Change tone/writing style, see archived chats, access thousands of prompts, customizable power prompts, read daily newsletter,
1,827 users
DeepDyve Plugin
The DeepDyve plugin seamlessly connects your favorite search engines with your DeepDyve Library through your DeepDyve account. Search, organize and access articles from PubMed, Google Scholar and across the web through your DeepDyve account.
1,787 users
Backspace Enabler
Re-enable disabled by default ability to hit the Backspace key to go back to the previous page. Backspace Enabler gets this functionality, while keeping ability to delete text while in text box. PLEASE POST FEEDBACK / REVIEW
1,742 users
Paperpile
Collect, organize, annotate and cite your research papers in Firefox.
1,515 users
Save Text To File
Save highlighted text to a file on your computer.
1,483 users
Wordtune: AI Writing, Paraphrasing & Grammar Tool
With Wordtune, your AI writing companion, you can easily paraphrase, rewrite, correct grammar and more — all for free. In just a few clicks, you can turn your scattered thoughts into exactly what you want to say and streamline your writing process.
1,397 users
LibrusPro
Rozszerzenie do Librusa wprowadzające ciemny motyw, liczące % frekwencji i średnie ocen, mimo ich wyłączenia przez Administratora, pozwalające na dodawanie własnych wydarzeń w terminarzu wraz z wieloma usprawniami funkcjonalności i wyglądu dziennika.
1,141 users
AI Code Finder & Alerts for Papers: CatalyzeX
🧑💻 Get implementation code for research papers directly on Google Search, ArXiv, Scholar, Twitter, Github, PubMed, IEEE, and more
1,087 users
SayAI
Adds voice recording and spoken answers to ChatGPT UI.
811 users