Open PDF in Default PDF Reader (Instead of FF)

Name: Open PDF in Default PDF Reader (Instead of FF)
Rating: 5 (1 reviews)
Author: Keven Lee

Open PDF links in your system's default PDF reader instead of the built-in browser viewer. Use Acrobat, Sumatra, Preview, or any external app with one click.

Overview

Firefox Add-ons Store

Daily users

88 ▲ 46

Data as of 2026-07-31

Rating:

5.00

(1)

Version:

3.5.0

Last updated: 2026-07-12

Features & Capabilities

Want PDFs to open in Adobe Acrobat, Sumatra PDF, Preview, or another app you already use?

This extension sends PDF links to your computer's default PDF reader instead of the built-in browser viewer.

Open PDFs externally in one click
Use familiar tools for annotate, search, and print
Control when links stay inline or launch outside
Works on common direct PDF links and downloads

Install once and read documents the way you prefer.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

3.5.0 Last updated: 2026-07-12

Version code:

6351901

Creation date:

2026-06-24

Risk:

Permissions:

Host permissions:

*://*/*

Content scripts matches:

<all_urls>

Size:

56.81KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-31

Compare stats and ranking:

Ranking

# 11,940 ▲ 4,868

Other rankings

#2 in pdf keyword 71

#91 in reader keyword 59 ▲ 22

#94 in defi keyword 32 ▲ 22

#173 in header keyword 24 ▲ 46

#209 in open vpn keyword 71 ▲ 40

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For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Keven Lee

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/open-ff/

Is Open PDF in Default PDF Reader (Instead of FF) Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Open PDF in Default PDF Reader (Instead of FF) requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Open PDF in Default PDF Reader (Instead of FF) is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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