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Measure-it by Trishul

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

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About this extension
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels. Features
  • Multi Process compatible
  • Fast
  • Simple
Note - This may not work on addons.mozilla.org
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More information
Add-on Links
Version
2.0
Last updated
9 months ago (Oct 13, 2017)
License
Mozilla Public License, version 2.0
Version History
Release notes for 2.0
Modified UX.
With modified permissions.
More secure more effective