In an era where browser extensions like Scribe, Monica, and cloud-based AI tools are praised for boosting productivity, few users stop to consider the privacy cost: every time you summarize a webpage or ask an AI sidebar to extract key insights, your raw page content—including private docs, internal company wikis, financial spreadsheets, and full URLs—is transmitted directly to third-party cloud servers.
If you regularly work with proprietary code, sensitive business documents, or self-hosted internal dashboards, streaming webpage DOM data to commercial AI providers poses a major data security risk.
The solution is straightforward: build your own 100% offline Private AI Browser Assistant. By pairing Page Assist—an open-source browser sidebar extension—with Ollama running locally on your hardware, you gain an intelligent, context-aware AI assistant right inside Chrome or Firefox without a single byte of telemetry ever leaving your machine.
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### Why Switch to a Local AI Browser Extension?
Replacing cloud-hosted browser assistants with a local setup delivers distinct advantages that no SaaS tool can offer:
1. Absolute Privacy (Zero Telemetry & Data Egress): Whether reviewing confidential internal wikis, personal Notion pages, or private webmail, all processing occurs strictly inside your system's RAM and GPU.
2. True Offline Functionality: Summarize lengthy technical documentation, research papers, or manuals while traveling or working in environments without an active internet connection.
3. Dynamic Model Switching: Seamlessly switch LLM models based on your current task—use Qwen2.5-Coder for code-heavy pages, Llama 3.1 for general text summarization, or DeepSeek-R1 for complex technical analysis.
4. Zero Subscription Fees: No monthly fees, token caps, or daily message limits. Once configured, your local AI assistant is completely free to use forever.
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### Step-by-Step Setup Guide (3 Simple Steps)
#### Step 1: Configure Ollama & Enable CORS
Make sure you have Ollama installed on your machine (available from ollama.com).
Because browser extensions issue API requests to Ollama’s default endpoint (localhost:11434), you must configure Ollama to accept Cross-Origin Resource Sharing (CORS) requests from extension environments:
* On Linux / macOS:
Open your Terminal and export the environment variable before starting the Ollama daemon:
```bash
export OLLAMA_ORIGINS="chrome-extension://,moz-extension://"
ollama serve
```
(For personal dev environments, setting export OLLAMA_ORIGINS="" is also acceptable).*
* On Windows:
Right-click the Ollama icon in your System Tray and select Exit. Open Command Prompt and run:
```cmd
set OLLAMA_ORIGINS=chrome-extension://,moz-extension://
ollama serve
```
Next, pull a lightweight, general-purpose model suitable for text and web analysis:
ollama pull qwen2.5:7b
---
#### Step 2: Install Page Assist Extension
Page Assist is a top-rated open-source web interface extension built specifically for local LLMs, offering native sidebar support for Chromium and Firefox browsers.
1. Open Chrome Web Store or Firefox Add-ons.
2. Search for "Page Assist" (or visit the open-source repository on GitHub).
3. Click Add to Chrome (or Add to Firefox) to install the extension.
4. Pin the Page Assist icon to your browser toolbar for quick access.
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#### Step 3: Connect Page Assist to Ollama
1. Click the Page Assist toolbar icon to open the assistant panel (supports both sidebar and standalone window views).
2. Click the Settings (gear) icon in the bottom corner.
3. Set the Ollama Provider URL to your local instance:
```text
http://localhost:11434
```
4. Page Assist will automatically scan your local Ollama library. Select your preferred default model (e.g., qwen2.5:7b or llama3.1:8b).
5. Optionally configure your custom System Prompt—for example: "Provide concise, structured summaries highlighting key takeaways in bullet points."
---
### 3 Key Features to Supercharge Your Web Browsing
Once connected, Page Assist unlocks powerful local AI workflows right inside your browser:
#### 1. One-Click Webpage Summarization
When reading long-form articles or dense technical guides, simply open the Page Assist sidebar and click "Summarize Page". The extension automatically extracts the active tab’s main text and generates a structured summary in seconds.
#### 2. Highlight & Context Menu Actions
Need quick explanations or translations? Highlight any text snippet on a webpage, right-click, and choose a Page Assist context action like "Explain Selection" or "Translate". The AI processes the selected text and displays the response directly in your sidebar.
#### 3. Deep-Dive Q&A with Active Web Content
Chat directly with the webpage content just as you would with a human research assistant. Ask specific questions such as:
"What are the main action items mentioned in these meeting minutes?"*
"Extract all key metrics and pricing details from this comparison table."*
"Refactor the code example on this page into async TypeScript."*
---
### Conclusion
Taking back control of your web privacy doesn't mean sacrificing modern AI capabilities. By pairing Page Assist with Ollama, you build a private, zero-leakage AI copilot that lives directly inside your browser—keeping your sensitive data, ideas, and workflows strictly on your local machine.
Set up your offline browser assistant today and experience true data sovereignty while browsing!