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MeasureIt 0.4.15 Requires Restart
by Kevin Freitas
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
This add-on is not compatible with your version of Firefox because of the following:
$10.00 suggested
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About this Add-on
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
