# Leetcode Calendar > A web extension that displays your leetcode submission history as a heatmap/calendar every time you open a new tab! Canonical page: [https://chrome-stats.com/d/leetcode-calendar](https://chrome-stats.com/d/leetcode-calendar) ## Overview - **ID:** `leetcode-calendar` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** Charlie Weinberger - **Category:** web-development,appearance,tabs - **Daily users:** 1 - **Weekly downloads:** 2 - **Version:** 1.4.0 - **Last updated:** 2025-03-17 - **First published:** 2025-03-16 - **Size:** 1.40 MB - **Data as of:** 2026-09-07 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/leetcode-calendar/) - **Website:** [https://github.com/charlieweinberger/leetcode-calendar](https://github.com/charlieweinberger/leetcode-calendar) - **Privacy policy:** [https://addons.mozilla.org/firefox/addon/leetcode-calendar/privacy/](https://addons.mozilla.org/firefox/addon/leetcode-calendar/privacy/) ## Description Do you want to spend more time doing leetcode, but keep putting it off or forgetting to make time for it? If so, then this extension is for you. Leetcode Calendar is a web extension that shows a minimalist view of your leetcode submission history as a heatmap/calendar every time you open a new tab. By reminding you of your leetcode progress every time you open a new tab, you'll never forget to do your daily leetcode problem to get that green square. Current Features: - Display data for any leetcode username - Display tooltip for showing submissions for any day - Toggle whether to view data in the current year (2025) or previous 365 days - Toggle whether or not to view the title text - Toggle whether to view a green colorway vs. orange colorway - Submit user feedback within the extension Check out the github repository here for more information! https://github.com/charlieweinberger/leetcode-calendar ## Rankings - #119,180 — Overall - #41 — leetcode - #82 — calendar ## Permissions and access ### Permissions - `storage` ### Host permissions - `https://leetcode.com/graphql` - `https://api.resend.com/emails` ## Safety - **Risk impact:** Low risk impact - **Risk likelihood:** Moderate risk likelihood ### Analysis details - Can change homepage settings, which might annoy the user but typically carries low risk. - 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 - [leetStats](https://chrome-stats.com/d/leetstats) — 4 users, 5.00 / 5 - [Purple Leetcode](https://chrome-stats.com/d/purple-leetcode) — 1 users - [LeetTab - Leetcode Dashboard](https://chrome-stats.com/d/leettab) — 2 users, 5.00 / 5 - [Leetcode Enhancer](https://chrome-stats.com/d/leetcode-enhancer) — 291 users, 4.43 / 5 - [Enhancer for Leetcode](https://chrome-stats.com/d/leetcodeenhancer) — 8 users, 5.00 / 5 - [LeetTracker](https://chrome-stats.com/d/leettracker) — 1 users, 5.00 / 5 - [Leetcode Contest Tracker](https://chrome-stats.com/d/leetcode-contest-tracker) — 5 users - [LeetCode Friends info](https://chrome-stats.com/d/leetcode-friends-info) — 1 users - [Painless LeetCode](https://chrome-stats.com/d/painless-leetcode) — 2 users, 5.00 / 5 - [Coding Competition Alerts](https://chrome-stats.com/d/coding-competition-alerts) - [Green Code](https://chrome-stats.com/d/green-timer) — 1 users, 5.00 / 5 - [LeetPlug](https://chrome-stats.com/d/leetplug) — 13 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/leetcode-calendar)