10 feet 🠚 10 feet【𝟯 𝗺】
This add-on automatically translates all American or Imperial units to Metric (International System of units - SI), adding converted unit in brackets behind USC unit.
Convenient for shopping, cooking, etc.

Everything Metric - Auto Unit Converter | Firefox Add-On
The Firefox add-on 'Everything Metric (Auto Unit Converter)' is an automatic translator for all American units to International System of units (SI/Metric). It conveniently inserts the converted units in brackets next to the original units. It caters to a wide variety of units including length, weight, volume, speed, temperature, area and volume measurements. Turn ON/OFF functionality globally or force conversion when needed using Alt+M shortcut.
Add-on stats
Manifest V2
Weekly download count: 40
Firefox on Android: No
Permissions:
- tabs
- storage
Size: 76.49K
Email: me*****@milosparipovic.com
Full description: See detailed description
Ranking
Other platforms
Not available on Android
User reviews
Pros
- Helps convert imperial units on US-centric websites
- Very useful and saves time for users who deal with imperial measurements regularly
- Works well 95% of the time
- Good support for various unit conversions
- Lifesaver for users encountering imperial units in recipes and sewing sites
Cons
- Inconsistent recognition of certain units and negative temperatures
- Introduces many false positives in text conversion
- No option to see original measurements after conversion
- Does not allow whitelisting of domains where it shouldn't run
- Limited functionality on mobile platforms
Most mentioned
- False positives in conversion
- Inability to handle certain measurement formats correctly
- Desire for a feature to view original measurements
- Request for whitelisting domains
- Need for better detection of specific units like negative temperatures
User reviews
by 远离中共邪教快退出党团队, 2025-02-13
Still works, but unfortunately when there's units like "2-3 feet" it will only convert the "3 feet" part.
by Dark Thoughts, 2025-01-22
lifesaver! a lot of websites, being US-centric, uses imperial units a lot so this helps out a lot as a non-American
by tagster, 2024-12-30
Add-on safety
Risk impact
Everything Metric (Auto Unit Converter) requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of Everything Metric (Auto Unit Converter). Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
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