RetroCalculator by Jordan Mitchell
A lightweight Firefox extension that brings back the classic feel of a retro calculator.
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Extension Metadata
About this extension
RetroCalculator brings the nostalgic charm of classic 80s calculators right into your Firefox toolbar. One click opens a full retro-style calculator — no new tabs, no distractions, just instant calculations with vintage style.
Designed for users who love a touch of retro aesthetics in their daily workflow, RetroCalculator combines simplicity with personality. The interface is rendered in a clean 800×600 popup, keeping everything compact and accessible while you browse.
Features:
- Instant access from the Firefox toolbar — always one click away
- Retro-styled calculator interface with a classic look and feel
- Lightweight and fast — no bloat, no tracking, no ads
- No account or sign-up required
- Fully self-contained popup — does not interfere with your browsing
Designed for users who love a touch of retro aesthetics in their daily workflow, RetroCalculator combines simplicity with personality. The interface is rendered in a clean 800×600 popup, keeping everything compact and accessible while you browse.
Features:
- Instant access from the Firefox toolbar — always one click away
- Retro-styled calculator interface with a classic look and feel
- Lightweight and fast — no bloat, no tracking, no ads
- No account or sign-up required
- Fully self-contained popup — does not interfere with your browsing
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Permissions and data
Required permissions:
- Access your data for 84.200.80.203
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0
- Size
- 29.33 KB
- Last updated
- a month ago (Feb 25, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
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