Measure-it Firefox

Measure-it

By: Trishul
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Features & Capabilities

Measure-it is a fast and simple Chrome extension designed to help developers, designers, and web enthusiasts measure any element on a webpage with precision. By drawing a ruler across any webpage, users can easily check the width, height, or alignment of page elements in pixels.

The extension supports customizable keyboard shortcuts—Command+Shift+O for Mac and Alt+Shift+M for Windows/Linux, which can be adjusted via the add-on preferences. Its user-friendly interface allows quick access and customization, ensuring seamless integration into your workflow. Note that Measure-it may not work on certain sites such as addons.mozilla.org.

User Growth & Download Statistics

Manifest V2 Add-on Developer Tools Design
By:
Trishul
Daily users:
21,610 -33
Rating:
4.39
(126)
Version:
2.2.0 Last updated: 2019-07-02
Version code:
4611228
Creation date:
2017-09-06
Risk:
Very low risk impact Very low risk likelihood
Permissions:
Size:
26.53KB
Email:
tr*****@gmail.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-18
Compare stats and ranking:

Other platforms

Chrome
Measure-it (v3.0.0)
80,000 3.54 (39)
Edge
Measure-it (v2.2.0)
14,659 3.70 (18)

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:
Trishul
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/measure-it/
Email:
tr*****@gmail.com
Website:
https://github.com/tsl143/measure-it

User Reviews

User feedback is mixed. Several reviews praise Measure-it as useful, convenient, and a good plugin that meets a need. A notable minority say it doesn’t work as expected, with the selected area behaving oddly or not moving. Some other posts in the feed are promotional or unrelated and don’t reflect the add-on’s function. Overall, the add-on is positively received by users who find it useful, with frustration from those whose experience diverges from expectations.
Pros
  • Useful and handy tool for measuring on webpages
  • Convenient and easy to use
  • Positive reception; described as a very good plugin
  • Meets a long-sought need (users were looking for this)
Cons
Recent reviews
by el*****, 2026-02-15

by fr*****, 2025-07-23

by Fi*****, 2025-06-23
View all user reviews ›

Is Measure-it 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-it 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-it has earned a good reputation and can be trusted.

Risk likelihood analysis details
  • Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
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Best Measure-it Alternatives

Here are some Firefox add-ons that are similar to Measure-it: