Gemini-Voyager Guide (Part 4): Environment Preparation and Installation

Forum topic · 小凯 · 2026-02-14

Summary

Part 4 of the Gemini-Voyager tutorial series covers environment preparation and installation. Gemini-Voyager is a browser extension that enhances the Gemini experience with features including folder management, a prompt library, cloud sync, formula copying, timeline navigation, chat export, Mermaid rendering, and NanoBanana support. The article provides a browser compatibility table showing that all features work on Chrome, Edge, Firefox, and other browsers, while Safari is supported except for NanoBanana. Minimum browser versions are Chrome 90+, Edge 90+, and Firefox 90+. Three installation methods are described: installing directly from browser app stores (Chrome Web Store, Edge Add-ons, Firefox Add-ons) via a four-step flow; manual developer-mode installation by downloading a release package from GitHub Releases, enabling developer mode at chrome://extensions, and loading the unpacked extension; and initial first-launch configuration via a welcome screen and setup wizard. The author notes that developer-mode installs do not auto-update.

Part 4: Environment Preparation and Installation

> This is Part 4 of the *Gemini-Voyager: From Beginner to Master* tutorial series.

2.1 Browser Compatibility Check

Before installing, confirm that your browser is compatible with Gemini-Voyager. The extension supports all major browsers, with minor differences in feature support.

Compatibility Table

| Feature | Chrome | Edge | Firefox | Safari | Others | |---------|--------|------|---------|--------|--------| | Folder management | ✅ | ✅ | ✅ | ✅ | ✅ | | Prompt library | ✅ | ✅ | ✅ | ✅ | ✅ | | Cloud sync | ✅ | ✅ | ✅ | ✅ | ✅ | | Formula copy | ✅ | ✅ | ✅ | ✅ | ✅ | | Timeline navigation | ✅ | ✅ | ✅ | ✅ | ✅ | | Chat export | ✅ | ✅ | ✅ | ✅ | ✅ | | Mermaid rendering | ✅ | ✅ | ✅ | ✅ | ✅ | | NanoBanana | ✅ | ✅ | ✅ | ❌ | ✅ |

Browser Requirements

Chrome: version 90+ (auto-update recommended)
Edge: version 90+ (Chromium-based)
Firefox: version 90+
Safari: macOS/iOS (limited features; NanoBanana disabled)
Opera/Brave: install via developer mode

2.2 Installing from the App Store

For most users, installing from the browser's app store is the simplest method.

Installation Flow

1. Visit the store — Chrome Web Store / Edge Add-ons / Firefox Add-ons 2. Click install — "Add to Chrome" / "Get" (Edge) / "Add to Firefox" 3. Confirm permissions — review the permissions the extension requests 4. Installation complete — the icon appears in the browser toolbar

> 💡 After installation, the extension icon appears in the toolbar; click it to open the popup.

2.3 Developer Mode Installation

For users who cannot access the app store, or who want the latest development version, manual installation via developer mode is available.

Steps

Step 1: Download the release package

Visit the GitHub Releases page
Choose the version for your browser
Extract it to a local directory

Step 2: Enable developer mode

Open chrome://extensions
Toggle on "Developer mode"

Step 3: Load the extension

Click "Load unpacked"
Select the extracted folder

Step 4: Verify installation

Check the toolbar icon
Visit the Gemini page to test features

> ⚠️ Note: Extensions installed via developer mode do not receive automatic updates and must be updated manually.

2.4 First Launch Configuration

After installation, the first launch shows a welcome screen that guides you through basic setup:

1. Welcome screen — feature overview and introduction 2. Setup wizard — basic configuration and preferences 3. Toolbar icon — click to open the popup 4. Get started — visit Gemini to experience the enhancements

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> ⏳ The next chapter covers the interface tour.