Measure Everything Firefox

Measure Everything

By: mdevils
Element distance measurement tool.

Features & Capabilities

Measure Everything is a versatile Chrome extension designed to help you measure distances between DOM elements on any webpage with ease. Simply activate the extension by clicking its icon or pressing the hotkey Alt+Shift+M, click on one element, and then hover over another to see instant distance measurements.

This tool is perfect for web developers and designers who need accurate spacing information while working on layouts. Pin the extension icon for quick access and streamline your workflow. User feedback and reviews are highly appreciated to improve the extension further.

User Growth & Download Statistics

Manifest V2 Add-on
By:
mdevils
Daily users:
709 3
Rating:
4.64
(25)
0.01
Version:
1.0.4 Last updated: 2023-12-07
Version code:
5661813
Creation date:
2020-07-15
Risk:
Very low risk impact Low risk likelihood
Permissions:
Size:
58.25KB
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-15
Compare stats and ranking:

Other platforms

Chrome
Measure Everything (v1.1.0)
20,000 4.71 (52)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
mdevils
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/measure-everything/

User Reviews

Users widely praise Measure Everything for precise HTML element sizing and for delivering exactly what frontend developers need. It's viewed as a much-needed, effective replacement where other extensions fall short, and it helps compare measurements against design references (e.g., Figma) while aiding layout simplification. After a short learning curve, most find it convenient and highly valuable. Reported drawbacks include small font size, iframe selection limitations, and occasional UX gaps (e.g., how to exit extension mode) that could be improved with minor updates. Overall, it's regarded as a top Firefox measurement tool.
Pros
  • Precise measurement of HTML element sizes
  • Precisely meets frontend/web design measurement needs
  • Excellent functionality not found in other add-ons (a strong replacement)
  • Helpful for comparing measurements against design references (e.g., Figma) and simplifying layouts
  • Easy and convenient to use once you get the hang of it
Cons
Recent reviews
I'm surprised this one is not built-in in Firefox. For daily front-end developer it is a must have.
by Fi*****, 2026-06-15

love it, just what i was looking for for doing frontend dev.
by ww*****, 2026-03-19

The only extensions that works perfect for measuring others suck
by *****, 2026-02-12
View all user reviews ›

Is Measure Everything Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Measure Everything does not require any sensitive permissions.

Risk impact analysis details
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Measure Everything has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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Best Measure Everything Alternatives

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