Harmonograph Firefox

Harmonograph

A calm new tab for developers: today's Google Calendar meetings, your assigned Linear issues, and world clocks, over an animated background. No servers, no tracking. Calendar and Linear are optional.

Features & Capabilities

Harmonograph replaces your new tab with the three things you actually check — today's meetings, the tasks assigned to you, and the time where your team is. Everything else is a slowly drifting harmonograph curve, redrawn on every tab. Both data sources are optional; with neither connected it's simply a clean, quiet new tab.

MEETINGS Today's Google Calendar events, with a one-click join link where the event has a video call attached. All-day events are grouped at the top. Choose which of your calendars appear, and only today's events are ever requested.

TASKS Linear issues assigned to you, with work in progress and anything overdue surfaced first, then ordered by priority. Filter by workflow status — show only To-do, or include Backlog, In Progress, Done and Canceled. Requires a Linear personal API key, which stays on your device.

WORLD CLOCKS A configurable clock bar along the bottom, using IANA timezone identifiers so daylight saving is handled for you.

EIGHT THEMES Four dark and four light variants, plus an auto mode that follows your system preference.

User Growth & Download Statistics

Manifest V3 Add-on Overrides new tab
By:
Tyler Craft
Daily users:
1
Version:
1.1.0 Last updated: 2026-08-22
Version code:
6423586
Creation date:
2026-08-19
Firefox add-on GUID:
harmonograph@craftish.dev
Firefox add-on numeric ID:
3056614
Weekly download count:
1
Firefox on Android:
Yes
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • https://api.linear.app/*
  • https://www.googleapis.com/*
  • https://oauth2.googleapis.com/*
  • https://accounts.google.com/*
  • https://fonts.googleapis.com/*
  • https://fonts.gstatic.com/*
Size:
55.91KB
Email:
ha*****@craftish.dev
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-07
Compare stats and ranking:

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:
Tyler Craft
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/harmonograph/
Email:
ha*****@craftish.dev
Website:
https://harmonograph.craftish.dev/

Is Harmonograph 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.

Harmonograph 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: linear.app, googleapis.com, google.com, gstatic.com
  • Medium *** ***** *** *** ********* ****** ****** *** **** **** ********** ** ****** **** ***********
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.

Harmonograph 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 was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
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