# BlockedStack

> A Better Substack experience

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

## Overview

- **ID:** `blockedstack`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Futuresight
- **Category:** feeds-news-blogging,privacy-security,social-communication
- **Daily users:** 51
- **Weekly downloads:** 2
- **Rating:** 4.00 / 5 (1 ratings)
- **Version:** 1.3.0
- **Last updated:** 2026-02-22
- **First published:** 2025-02-07
- **Size:** 374 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/blockedstack/)
- **Website:** [https://chemicalmind.substack.com/p/tools](https://chemicalmind.substack.com/p/tools)

## Description

Tools for Substack!

Features:
<ul><li>Quick Templates: Easily insert donate buttons, custom linebreaks, or any other content into the post editor with the Templates toolbar (New in v1.3.0)</li><li>Note Filter: Hide notes from your feed based on certain words and phrases. Now you can finally get rid of all the Sabrina Carpenter spam!</li><li>Note Exporter: Save all notes you've ever posted into a single file.  Now supports exporting in CSV format (v1.3.0)</li><li>Block Checker: See how many people have blocked you, for funsies</li></ul>
How to use:

Simply install the browser extension, and visit the Substack homepage.  Once there, click the BlockedStack button on your toolbar to open it (it's a tiny pink snail), and try out the buttons. Most of these involve long-running operations, so you'll have to be patient while it does its thing.

This extension also inserts a toolbar at the top of certain substack pages, like your profile page, and the post editor.  You can turn these toolbars off at the click of a button in the Extension settings.

Enjoy!

## Rankings

- #15,997 — Overall
- #103 — stock
- #211 — templates
- #237 — phrase
- #245 — template
- #245 — website blocker

## Permissions and access

### Permissions

- `storage`
- `activeTab`
- `scripting`
- `downloads`
- `notifications`
- `http://substack.com/*`
- `https://substack.com/*`
- `https://*.substack.com/*`

### Content script matches

- `*.substack.com`
- `substack.com`

## Safety

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

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial 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).

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