Add-ons
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Firesizer
Requires Restart
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
12 users
Mozilla Labs - Jetpack Prototype
Requires Restart
Jetpack Prototype is an experiment in making it easy to build Firefox add-ons using common web technologies.
0 users
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