Web Archives
View archived and cached versions of web pages on various search engines, such as the Wayback Machine and Archive․is.
66,200 users
Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
2,787 users
Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
68,646 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.
25,891 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.
16,119 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.
10,468 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.
3,473 users
Google Scholar search engine
Adds a search engine for Google Scholar (scholar.google.com).
3,185 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
3,022 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.
2,690 users
doqment PDF Reader
Firefox's PDF Viewer with Reader Mode: change the colours of PDFs while reading.
2,271 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,
1,805 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
1,768 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.
1,620 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.
1,374 users
LibrusPro
Browser extension for the Polish Librus e-diary, introducing a dark theme, displaying grade point averages despite being disabled by the School Administrator, allowing to add custom events in the schedule and some minor improvements to its features.
1,282 users
