# trellozen

> Set a custom background for each individual Trello board using any available image URL from the web. Visit a Trello board and the TZ icon should appear allowing you to set the background for the specific board. Supports multiple boards!

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

## Overview

- **ID:** `trellozen`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** tomjar
- **Category:** appearance
- **Daily users:** 1
- **Version:** 2.0.1
- **Last updated:** 2019-08-30
- **First published:** 2018-07-24
- **Size:** 19 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/trellozen/)
- **Website:** [https://github.com/tomjar/trellozen-firefox](https://github.com/tomjar/trellozen-firefox)

## Description

trellozen is a Firefox add-on that enables users to set custom background images for each of their Trello boards. With trellozen, you can personalize your boards by selecting any image URL from the web, giving you more control over the aesthetics of your Trello experience.

## Rankings

- #92,205 — Overall

## Permissions and access

### Permissions

- `https://*.trello.com/b/*`
- `activeTab`
- `tabs`
- `storage`

### Content script matches

- `*.trello.com`

## 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).

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