Comet vs Mind Browser

Comet is Perplexity’s AI browser, with an assistant built into browsing. The assistant can answer questions about open tabs, search the web and interact with websites on the user’s behalf. Examples include summarizing or explaining content, comparing tabs, drafting emails, scheduling meetings and making purchases. Perplexity is the default search engine, and Comet uses Chromium. It is free to download at free for Android, iOS, macOS and Windows. Comet supports most Chrome extensions, though users must install and configure them again because extension data does not transfer from Chrome. The browser stores URLs, searches, cookies, open tabs and site permissions locally. Website credentials are kept in the device’s secure vault, not on Perplexity’s servers. Privacy settings allow deletion of browsing and search history, cookies and cached data. However, some queries may involve sending page context, including text or email, to Perplexity’s servers. Email or schedule tasks may require opting in to Perplexity Connector access; those permissions can later be changed or revoked. Comet says users can stop the agent and should review actions before confirming them.

Mind Browser is a free, MIT-licensed Chromium browser with five sidebar agents: Planner, Navigator, Researcher, Writer, and Analyst. They handle planning, browser control, source research, writing, and analysis using supported model providers or Ollama on the user’s machine. With Ollama selected, prompts and page text stay local. The browser includes News Hub with six sections, political-spectrum labels, deduplicated briefings, Google Trends, Polymarket odds, and Kalshi questions. Finance Hub offers chart ranges, indicators, company fundamentals, industry news, trending tickers, and watchlists without API keys or subscriptions. Finance data is typically fifteen minutes behind for US equities, and there is no broker integration or order tool. Other tools include Shields network blocking, split view, notes, command palette, extensions, PDF annotation, screenshots, and a per-process task manager. It supports macOS 12 or later on Apple Silicon and Windows 10/11 on x64. Chrome bookmarks and history cannot currently be imported. The free plan is free, billed Free forever.