# GFX Developer Toolset

> A set of helpful tools for web design and site development by GibsonFX GFX Developer Tools aims to streamline your workflow with simple set of tools with unique features and other helpful resources!

Canonical page: [https://chrome-stats.com/d/gfx-developer-toolset](https://chrome-stats.com/d/gfx-developer-toolset)

## Overview

- **ID:** `gfx-developer-toolset`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** GibsonFX
- **Category:** web-development
- **Daily users:** 1
- **Version:** 1.0
- **Last updated:** 2023-03-29
- **First published:** 2023-03-28
- **Size:** 76 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/gfx-developer-toolset/)
- **Website:** [https://www.gibsonfx.com](https://www.gibsonfx.com/)

## Description

GFX Developer Toolset is a browser extension that simplifies the process of converting pixel values to viewport width and calc() values in your CSS code. It enhances web developers' capabilities in creating responsive and adaptive websites.

## Rankings

- #88,721 — Overall
- #189 — developer tools

## Permissions and access

### Permissions

- `activeTab`
- `tabs`
- `storage`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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).

## Similar extensions and apps

- [Ruler Grid](https://chrome-stats.com/d/ruler-grid) — 39 users
- [Gripper - DevTools for Designers](https://chrome-stats.com/d/gripper-devtools-for-designers) — 3 users
- [CSS Unit Converter](https://chrome-stats.com/d/css-unit-converter) — 4 users, 5.00 / 5
- [BDLibraries Web Design Tools](https://chrome-stats.com/d/bdlibraries-web-design-tools) — 3 users, 5.00 / 5
- [99Tools: Web Developer Toolkit](https://chrome-stats.com/d/99tools-web-developer-toolkit)
- [Online Tools by 10015.io](https://chrome-stats.com/d/online-tools-by-10015-io) — 888 users, 4.67 / 5
- [Apex Tools](https://chrome-stats.com/d/apex-tools) — 2 users
- [Web Developer](https://chrome-stats.com/d/web-developer) — 64,538 users, 4.30 / 5
- [WebTools](https://chrome-stats.com/d/webtools) — 26 users, 3.67 / 5
- [DevSuite Pro](https://chrome-stats.com/d/devsuite-pro) — 11 users
- [Quasar Developer Tools](https://chrome-stats.com/d/quasar-developer-tools)
- [Quasar Developer Tools Pro](https://chrome-stats.com/d/quasar-developer-tools-pro) — 1 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/gfx-developer-toolset)