Chromium Based Browser Comet
✅ What is Comet Browser?
Comet Browser is a new-generation AI-powered web browser developed by Perplexity AI. It aims to move beyond traditional browsing by embedding intelligent, context-aware tools that help with research, productivity and task automation.
Its key features include:
Built on the Chromium framework (so extension & bookmark support similar to Chrome)
An AI assistant sidebar that can summarize web pages, draft emails, manage tasks, and perform multi-step workflows.
A workspace or tab-management system that’s more focused on context and project organisation (rather than just dozens of loose tabs).
AI-driven personalised recommendations and workflow suggestions based on what you’re doing online.
A move to make the browser free for all users (as of around Oct 2025), with advanced features or tiers for paying/subscribed users.
🏗 Who’s behind it & When was it launched?
The browser is produced by Perplexity AI, a company that focuses on AI search and large-language-model capabilities.
Comet’s initial launch occurred in July 2025 (desktop versions), with broader roll-out happening later.
In India (for example) it became available for Mac and Windows for Pro subscribers, with Android version listed for pre-registration and iOS still pending as of that time.
🎯 Why it matters / What problem it addresses
Browsing the web is no longer just about opening pages; many users (researchers, professionals, creators) need to collect information, summarise, manage workflows, etc. Comet tries to make that easier by embedding AI directly inside the browser.
It aims to challenge incumbents like Google Chrome by offering a different paradigm — not just a browsing engine, but a “workflow assistant” inside the browser.
By offering automation (e.g., converting a web page into an email, managing calendar events based on your browsing) it tries to reduce switch-over between tools/apps.
⚠️ Limitations / Things to be cautious about
It’s still relatively new, so some users report the browser feels like a “Chrome skin with AI added” rather than a completely new architecture.
Security & privacy concerns: Because it allows agentic AI (that can act on your behalf), one should check how data is handled, what permissions are needed, and any vulnerabilities that may surface as with any new technology.
Platform availability: While desktop versions exist, mobile (especially iOS) may lag or have restricted access.
Subscription tiers and feature gating: Though core features are moving to free, some advanced capabilities may still be behind paid tiers.
🧐 Is it for you?
You might benefit from Comet Browser if you:
Do a lot of web-based research, content creation, or complex workflows where you open many tabs, gather data, summarise & act on it.
Want a browser that helps automate certain tasks (e.g., summarisation, drafting, tab grouping) rather than just showing websites.
Are comfortable with new tools and willing to try a browser that’s more “AI-centric”.
It might be less suitable if you:
Primarily browse casually and don’t need heavy automation or AI-based summarisation.
Prioritise maximum performance, minimal features, or ultra-lightweight browsing (traditional browsers may still be more mature).
Are concerned about stability, privacy or data handling in brand-new tech (you may want to wait for more feedback or adoption).
🏛 Background & Origins
The browser is developed by Perplexity AI, a company founded in 2022 by Aravind Srinivas (CEO), Denis Yarats, Johnny Ho, and Andy Konwinski.
Perplexity originally made its mark through an AI “answer engine” / search product. The move into a full-browser built around AI represents a strategic step to own more of the user-interface and user-interaction layer.
Comet is built on the Chromium engine/framework, meaning it supports Chrome-style extensions and familiar browser behaviour for users.
🕒 Key Milestones & Timeline
Date—>Event
Early 2025—>Rumours and announcements of Perplexity developing a full browser begins surfacing. (e.g., wiki page noting Feb 2025 announcement)
9 July 2025—>Public launch of Comet for the first set of users: specifically for subscribers to Perplexity’s Max plan (US$200/month) and invite-only users.
22 September 2025—>In India, Comet made available to all Pro subscribers of Perplexity (via local rollout
3 October 2025—>Perplexity announced that Comet would be available to all users, free to download and use (core features) worldwide.
October 2025—>Additional features and “Background Assistant” for paid tiers start to be promoted; Android version still in “coming soon” stage, iOS available in certain markets.
🎯 Major Features & Distinguishing Capabilities
Comet was designed with a set of AI-centric features to differentiate it from traditional browsers:
AI Sidebar Assistant (“Comet Assistant”): An embedded agent that can summarise web pages, manage tabs/workspaces, perform tasks (e-mail drafting, scheduling, shopping), and respond to prompts in context.
Workspaces & Reduced Tab Clutter: Instead of just many tabs, Comet introduces “workspaces” and context-aware organisation of browsing sessions and tasks. utm_source=chatgpt.com)
Integrated AI Search Engine: The browser uses Perplexity’s search engine as default, serving AI-generated summaries in place of traditional result lists.
Agentic Task Automation: Beyond just searching, the browser can carry out multi-step workflows (e.g., compare products, book meetings, convert web pages into emails) — part of the “thinking-partner” vision.
Chromium Compatibility: Supporting existing extensions/bookmarks easing the transition for users from Chrome/Edge.
🌍 Roll-Out & Market Strategy
The initial rollout was very selective, aiming at high-engagement users (Max plan) to test features and build buzz.
India was highlighted as a strategic region for rollout, with local partner deals (e.g., with Bharti Airtel) to accelerate adoption.
The shift to free for all users marked a pivot to broader adoption and competitive positioning against incumbents (e.g., Google Chrome)
📌 Challenges, Criticisms & Considerations
While the technology is ambitious, launching a browser is complex: user habits, extension ecosystems, security/privacy expectations all matter.
Security and privacy concerns have been raised in media: for example the risk of an AI assistant in a browser automating actions on behalf of the user (including credential or transaction risks). Windows Central
Platform coverage still catching up: mobile versions (especially Android) appear “coming soon” as of latest reports.
Transitioning from paid/subscriber-only model to free model may pose monetisation and value-perception questions (what features remain paid, what’s free?).
🔮 Why It Matters & Where It’s Headed
Comet represents a new category: browser as proactive agent, not just passive viewer of web pages. If successful, it could reshape how we interact with the web, especially for productivity, research, knowledge work.
By integrating search, AI summarisation, automation and browsing in one tool, Perplexity is positioning itself to capture user time and attention at a deeper level.
The shift to free shows the strategic goal is scale and adoption rather than premium pricing alone. This may enable network effects, data scale, and partner integrations.
Future risks/opportunities: extensibility (will extension ecosystem flourish?), privacy/security (will agentic features be safe?), cross-platform (mobile, enterprise) support.
1. The Original Comet Browser (1997-1999) - The “C” in C&O
The first and most historically significant Comet browser was part of a short-lived but ambitious project from Microsoft.
Origins and Context: The Browser Wars
In the mid-1990s, Netscape Navigator dominated the web. Microsoft, recognizing the web’s importance, launched Internet Explorer (IE) to compete, triggering the “First Browser War.” To catch up quickly, Microsoft pursued a two-pronged strategy.
The Comet & Odyssey Project (1997)
In 1997, Microsoft established two separate teams to develop next-generation browsers:
The “Odyssey” Team: Based at Microsoft’s headquarters in Redmond, Washington. This team was focused on evolving the current Internet Explorer codebase (which was itself derived from Spyglass Mosaic).
The “Comet” Team: Based in a remote Microsoft office in Ipswich, England. This team was tasked with building a brand-new browser from the ground up, unencumbered by the legacy code of IE.
The idea was a classic “skunkworks” project: let a small, agile team innovate freely and see which approach—incremental improvement (Odyssey) or a clean-slate redesign (Comet)—yielded the best result.
Comet’s Vision and Features
Comet was not just an update; it was a radical rethinking of the browser. Its proposed features were years ahead of their time:
A Componentized “Browser OS”: Comet was designed as a core “shell” that could host different rendering engines. This would allow it to display web pages using either the IE Trident engine or Netscape’s Gecko engine, promoting compatibility.
Deep OS Integration: It was planned to be deeply integrated with the Windows shell, blurring the line between the local desktop and the web.
Advanced Standards Support: The team aimed for excellent support for emerging web standards like HTML 4.0 and CSS.
A New User Interface: It featured a highly customizable UI with a “sidebar” for favorites, history, and search—a concept that would later become standard in browsers like Opera and Firefox.
The Demise and Legacy
By 1998, the political and strategic landscape within Microsoft shifted.
Internet Explorer’s Success: IE 4.0, developed by the Odyssey team and others, was a massive success. It was released in 1997 and began rapidly gaining market share against Netscape. The business case for a brand-new, unproven browser from a small UK team weakened.
The “United Windows” Strategy: Microsoft decided that having two competing browser teams was inefficient and created internal conflict. The company pivoted to a “one Windows” strategy, wanting a single, unified browser codebase.
The Merger and Cancellation: In 1998, Microsoft management decided to merge the projects. Effectively, the Comet project was canceled, and the team was disbanded. Some of its ideas and personnel were folded into the Internet Explorer 5.0 project.
The original Comet browser was never publicly released. Its legacy lives on as a fascinating “what-if” in browser history—a potentially more innovative and open path that Microsoft chose not to take in favor of the strategic victory of Internet Explorer.
2. The Modern Comet Browser (2015-Present) - A Chromium-Based Browser
The “Comet” name was revived in the 2010s for a completely unrelated project. This Comet Browser is a modern, lightweight web browser developed by Comet Network Inc.
Origins and Philosophy
This Comet Browser was created in the era dominated by Google Chrome. Its stated goals are:
Simplicity and Speed: To be a fast, clean, and lightweight alternative to the increasingly bloated major browsers.
Privacy Focus: To offer stronger privacy protections by default than browsers like Chrome.
User Experience: To provide a minimal, distraction-free interface for browsing.
Key Features and Timeline
Chromium-Based: Like many modern browsers (Brave, Vivaldi, Edge), it is built on the open-source Chromium project. This ensures excellent compatibility with websites and the ability to use the vast library of Chrome extensions.
Privacy Features: It includes built-in ad-blocking, tracker blocking, and a “Do Not Track” feature enabled by default.
Lightweight Design: The browser promotes itself as using less RAM and CPU than competitors, appealing to users with less powerful devices.
Development: It has been in continuous development since its launch, with regular updates to keep pace with the Chromium core.
Current Status
The modern Comet Browser is a niche player in the crowded Chromium-based browser market. It exists as a capable, privacy-conscious option but has not achieved significant market share compared to giants like Chrome, Firefox, Edge, or even other Chromium alternatives like Brave. It is still available for download and is primarily known to users seeking a simple, fast, and private browsing experience.
Summary Table
Feature —>Comet (Microsoft, 1997-1999)—>Comet (Comet Network, 2015-Present)
Developer —>Microsoft—>Comet Network Inc.
Era —>First Browser War—>Post-Chrome Era
Status —>Canceled, never released.—>Actively developed and available.
Codebase —>Proprietary, built from scratch.—>Chromium-based.
Significance—>A historical “what-if”; a lost Microsoft project that was ahead of its time.—>A modern, niche, privacy-focused browser in a crowded market.
Legacy—>Its ideas influenced later IE versions; a footnote in browser war history.—>A functional browser for users seeking a lightweight, private Chromium option.
In conclusion, the history of the “Comet” name in browsers spans two decades and represents two very different philosophies: one, an ambitious and ultimately abandoned project from a tech giant, and the other, a modest but enduring effort to create a simpler, more private web browser.
