# FormVisualizer

> A small Firefox extension for web app security testers. It allows visualizing and manipulating form elements and clearing cookies, local storage and cache with a single action.

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

## Overview

- **ID:** `formvisualizer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** tterac
- **Category:** web-development
- **Daily users:** 3
- **Version:** 1.3.2
- **Last updated:** 2021-06-07
- **First published:** 2019-03-03
- **Size:** 25 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/formvisualizer/)
- **Website:** [https://github.com/t-tera/FormVisualizer](https://github.com/t-tera/FormVisualizer)

## Description

FormVisualizer is a Firefox add-on designed for web application security testers. It provides features such as form visualization, manipulation, clearing of cookies and local storage, showing DOM HTML source, and tracking HTTP response status code and URLs.

## Rankings

- #57,224 — Overall

## Permissions and access

### Permissions

- `<all_urls>`
- `menus`
- `browsingData`
- `webRequest`

### Content script matches

- `*`

## Safety

- **Risk impact:** High 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/formvisualizer)