LibreWolf WinUpdater helps update installed or portable LibreWolf instances on Windows, with a separate Chromium updater fork also linked.
Sigma AI Browser
Sigma is a private AI browser with a built-in AI agent, local AI, and an ad blocker.
About Sigma AI Browser
Sigma AI Browser is a Chromium-based browser with a built-in AI agent, AI chat, and a local LLM called Eclipse. The agent can navigate pages, fill forms and handle multi-step tasks, while AI chat can answer questions, run research, and generate images and text. Eclipse is described as running on the device without sending prompts to servers.
It also includes a built-in ad blocker, page-level questions and summaries, on-page translation, extension support, separate profiles secured by a 12-word phrase, and support for decentralized apps and wallets. Downloads are listed for macOS, Windows and iOS.
Key features
- AI agent navigates pages, fills forms and handles multi-step tasks
- AI chat answers questions, researches and generates images and text
- Eclipse local LLM runs on device without sending prompts to servers
- Built-in ad blocker filters intrusive ads
- Chat with page summarizes content and answers questions in place
- Highlighted text translation directly on the page
Best for: People who want AI chat, task handling, and on-device AI processing inside one browser.
Good for
- Eclipse processes prompts on the device rather than on servers
- Includes built-in ad blocking and real-time phishing warnings
- Supports extensions and separate profiles secured by a 12-word phrase
Sigma AI Browser at a glance
- Website
- sigmabrowser.com
- Category
- Privacy & Security › Private Browsers & Search
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- iOS, macOS, Web, Windows
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Sigma AI Browser alternatives
Tools and sites you could use instead, ranked by how closely they match.
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