Question: I need a browser extension that can help me with research and provide instant answers.

Unriddle is an AI-powered tool that boosts your research by generating an AI assistant on top of documents. It can give you quick answers, summarize complex information, take notes and more. It can handle big PDF files and works in more than 90 languages, so it's geared for researchers. You can get to it through a Chrome extension for easy integration.

Another good option is Layer, which automates research by giving you quick access to relevant information, precise answers to specific questions and insights from PDFs. It's geared for researchers, journalists and scientists who need to work more efficiently. Layer offers a free trial and a Pro plan for $30 per month.

Linnk AI is designed to speed up insight generation by extracting useful information from complex documents. It spans languages, can generate standalone summaries and comes with a browser extension for quick access. It's geared for professionals who need to keep up with news and articles in their field.

If you're working with PDFs a lot, ChatPDF is worth a look. You can upload a PDF and ask questions, and it'll give you answers and summaries. It can handle multi-file chats, cite sources and handle PDFs in any language, so it's good for researchers and students.