Zo byšće tute přidatki wužiwał, dyrbiće Firefox sćahnyć.

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Pohódnoćenja za Measure-it

Measure-it wot Trishul

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Pohódnoćenje wot SG
wot SG, prije 5 godina
Installed in Mozilla and Chrome, now works correctly on a site outside Mozilla, which I havent tried before. Sorry

Wotmołwa wuwiwarja

je so prije 5 godina napisał
This do not work on addons.mozilla.org(due to Firefox restrictions), did you try on any other website?

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UPDATE
Thanks for trying again :)