[@firefox](https://lemmy.world/c/firefox)

Quick Calculator & Unit Converter — Firefox sidebar extension

Right-click any page → instant calculator and unit converter in your sidebar. No new tab required.

Supports: area, data, energy, length, mass, speed, temperature, time, volume

[https://addons.mozilla.org/en-US/firefox/addon/quick-calculator-unit-converte/](https://addons.mozilla.org/en-US/firefox/addon/quick-calculator-unit-converte/)