# OnlinePDF Viewer

> OnlinePDF Viewer is an extension tailored to present all PDF files directly within the browser window, bypassing automatic downloads or "Save as" prompts. Users can conveniently view PDFs and save them using CTRL+S (or CMD+S) after viewing.

Canonical page: [https://chrome-stats.com/d/onlinepdf-viewer](https://chrome-stats.com/d/onlinepdf-viewer)

## Overview

- **ID:** `onlinepdf-viewer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** OKVIP
- **Category:** feeds-news-blogging
- **Daily users:** 1
- **Version:** 1.0.6
- **Last updated:** 2023-12-31
- **First published:** 2023-12-30
- **Size:** 28 KB
- **Data as of:** 2026-09-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/onlinepdf-viewer/)

## Description

OnlinePDF Viewer required with OnlinePDF Viewer; it ensures seamless viewing of PDF files directly in the browser. Ensure your Firefox setting under Preferences > Applications > PDF is set to "Preview in Firefox" for optimal functionality.

## Rankings

- #129,004 — Overall

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/onlinepdf-viewer)