Sync Theme

Name: Sync Theme
Author: Dee

Automatically switches Gmail, Grafana, and Slack between light and dark to match your operating system's theme. Works only on those sites — no accounts, no tracking, no data collection. Allows custom domains for self-hosted Grafana.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-08-02

Version:

1.0.0

Last updated: 2026-06-30

Features & Capabilities

Sync Theme keeps Gmail, Grafana, and Slack in step with your operating system's light/dark setting. Flip your OS to dark mode and your open Gmail, Grafana, and Slack tabs follow automatically — and back to light when you switch back.

Features • Works on Gmail, Grafana (Grafana Cloud and self-hosted), and Slack web. • A master on/off switch plus a per-site toggle, so you can run just the sites you want. • Add self-hosted Grafana instances on your own domains — you approve each one through Firefox's permission prompt. • No accounts, no tracking, no data collection, no remote servers.

How it works When your OS theme changes, Sync Theme switches each site using that site's own built-in light/dark control, so it looks exactly as the site intends — including custom Slack workspace themes. It runs only on Gmail, Grafana, and Slack, never on other sites, unless you explicitly add a self-hosted Grafana domain on the options page.

Privacy Sync Theme does not collect, transmit, or sell any data. Your on/off preferences sync through your own Firefox account; any self-hosted domains you add stay on your device. Full policy: https://github.com/sideprojects-dee/sync-theme/blob/main/PRIVACY.md

User Growth & Download Statistics

Add-on

By:

Dee

Daily users:

Version:

1.0.0 Last updated: 2026-06-30

Version code:

6327013

Creation date:

2026-06-27

Risk:

Permissions:

Content scripts matches:

*.grafana.com
*.grafana.net
*.slack.com
grafana.com
mail.google.com
slack.com

Size:

52.47KB

Email:

mo*****@dee.kitchen

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-02

Compare stats and ranking:

Ranking

# 130,959 ▲ 1,111

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:

Dee

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/sync-theme/

Email:

mo*****@dee.kitchen

Website:

https://github.com/sideprojects-dee/sync-theme

Is Sync Theme 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.

Sync Theme requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: grafana.com, grafana.net, slack.com, google.com
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

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.

Sync Theme 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 has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****