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|Name||Dương Thành An|
|User since||July 30, 2007|
|Number of add-ons developed||1 add-on|
|Average rating of developer's add-ons||Rated 4 out of 5 stars|
Pencil is a Firefox add-on to do GUI prototyping and simple sketching
This add-on is not compatible with your version of Firefox because of the following:
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