# InstaCalc

> InstaCalc is the worlds simplest to use calculator extension for your browser. Begin typing an expression when you are on a page (yes, any page online), and a window will automatically pop up showing the problem and answer!

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

## Overview

- **ID:** `instacalc`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Laz H
- **Category:** other
- **Daily users:** 1
- **Rating:** 3.00 / 5 (1 ratings)
- **Version:** 1.0
- **Last updated:** 2019-08-13
- **First published:** 2019-08-12
- **Size:** 105 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/instacalc/)
- **Website:** [https://github.com/lazhh/instacalc](https://github.com/lazhh/instacalc)

## Description

InstaCalc is the worlds simplest to use calculator extension for your browser. If you need quick calculations when you browse the web, then it doesn’t get any easier. Begin typing an expression when you are on a page (yes, any page online), and a window will automatically pop up showing the problem and answer! No flipping between a calculator app and your browser, you don’t even have to click an icon. Just start typing.

## Rankings

- #87,101 — Overall

## Permissions and access

### Content script matches

- `<all_urls>`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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/instacalc)