# SelectCalc

> Turn any form field into a powerful calculator!

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

## Overview

- **ID:** `selectcalc`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Scott Zeid
- **Category:** other
- **Daily users:** 10
- **Version:** 2.2resigned1
- **Last updated:** 2024-04-26
- **First published:** 2018-12-04
- **Size:** 34 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/selectcalc/)
- **Website:** [https://code.s.zeid.me/selectcalc](https://code.s.zeid.me/selectcalc)

## Description

SelectCalc is a Firefox add-on that turns any form field into a powerful calculator. It lets you calculate mathematical expressions by simply selecting the expression and pressing a key combination. You can use common operators, functions, and constants, and the add-on provides aliases for ease of use. SelectCalc is free software released under the X11 License and does not track or send any data from your device.

## Rankings

- #33,301 — Overall

## Permissions and access

### Permissions

- `contextMenus`
- `tabs`
- `<all_urls>`

### Content script matches

- `*`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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/selectcalc)