# Proofscape Browser Extension

> The Proofscape Browser Extension enables PDFs from the web to open automatically in PISE, the Proofscape Integrated Study Environment. It also provides a dedicated on-disk PDF cache, to avoid repetitive downloads.

Canonical page: [https://chrome-stats.com/d/proofscape-browser-extension](https://chrome-stats.com/d/proofscape-browser-extension)

## Overview

- **ID:** `proofscape-browser-extension`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Steve Kieffer
- **Category:** download-management
- **Daily users:** 1
- **Version:** 3.0
- **Last updated:** 2022-11-10
- **First published:** 2022-07-16
- **Size:** 1.06 MB
- **Data as of:** 2026-09-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/proofscape-browser-extension/)
- **Website:** [https://docs.proofscape.org/download/pbe.html](https://docs.proofscape.org/download/pbe.html)

## Description

Proofscape Browser Extension is a Firefox add-on that enables web PDFs to open directly in PISE, the Proofscape Integrated Study Environment. It also includes a PDF cache to avoid repeated downloads.

## Rankings

- #95,824 — Overall
- #121 — browser extension

## Permissions and access

### Permissions

- `activeTab`
- `scripting`
- `storage`
- `unlimitedStorage`

## Safety

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

### Analysis details

- 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/proofscape-browser-extension)