Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Measure-it: Firefox Add-on for Webpage Dimension Inspection
"Measure-it" is a fast and simple Firefox add-on that allows users to accurately measure the dimensions of elements on any webpage in pixels. With customizable UI and keyboard shortcuts, users can easily draw a ruler across any webpage to check the width, height or alignment of its elements. Please note that this may not work on addons.mozilla.org.
Add-on stats
Weekly download count: 331
Firefox on Android: No
Risk impact: Very low risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- activeTab
- storage
Size: 27.16K
Email: tr*****@gmail.com
URLs: Website
Ranking
# 443 ▲ 2
Other platforms
Not available on Android
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Add-on summary
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Keyboard shortcuts Mac - Command+Shift+O Windows/Linux - Alt+Shift+M This can be changed from Add-on preferences. Features
- Fast
- Simple
- Customizable UI/shortcuts from preferences
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Super useful!
- Interesting and convenient addon
- Runs technically flawless
Cons
- It did not work the way I expected.
- Cannot move created rectangle
- Doesn't work anymore after installation
Most mentioned
- Issues with functionality
- User's expectation of how it should work
- Reinstallation did not resolve problems
User reviews
Super useful!
by ZayneH, 2024-11-17
by frostbyte, 2024-08-07
It did not work the way I expected. It just took out a random chunk of the page where my cursor was, the section was not moveable. Had to "X" out of a screen it brought up. Not at all how it was understood to act.
by TheAlphaBoy77, 2024-05-24
Add-on safety
Risk impact
Measure-it does not require any sensitive permissions.
Risk likelihood
Measure-it has earned a fairly good reputation and likely can be trusted.
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