Question: Is there a browser extension that can provide instant answers to my questions about a webpage?

If you want a browser extension that can give you an immediate answer to a question about a website, BLUF is a good choice. The AI-powered assistant can give you answers, summaries and explanations of websites. It's got an "Ask" command for refining a query, a "Summarize" command for spotlighting the most important information, and an "Explain" command for explaining complex ideas. BLUF is available as a browser extension for Chrome and Firefox, and it'll give you the information you need as soon as you need it.

Another top contender is HARPA. HARPA uses AI models like ChatGPT and OpenAI GPT-3 to give you immediate answers, summarization and content generation right on any website. It's got more than 100 web-aware commands, and it can be used for marketing, productivity and HR work. HARPA is designed to protect your privacy by running on your computer instead of sending data to the cloud, and it offers several pricing levels depending on your needs.

For those who want more options to boost their web searching and reading productivity, Wiseone is worth a look. It can help you cut through the noise with "Focus" to explain complex terms, "Cross-check" to find sources for facts, and "Ask Anything" to get immediate answers. Wiseone also has a "Summarize" option and an "Explore" option to find related articles, and it works in multiple languages and with short and long PDFs. Pricing includes a free basic tier and a pro subscription for unlimited queries.

Last, Lunally brings ChatGPT to your browser tab so you can get information and navigate websites more easily. It can summarize web pages, present them as a chat, and generate ideas and concepts related to the current webpage. Lunally offers two service tiers, including a free trial, to help you get more out of your web browsing.