Extension Manager SlimList Places button on toolbar that opens extension manager in new tab.
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Extension Manager SlimList Tags

customize extension addon tab manager firefox addon extension manager tab home button account manager button toolbar extension Tab Extension Extension Customizer Customize Addon Button Manager extension association manager Addon Manager button

Extension Manager SlimList Description

Replaces disabled default add-on icon and throbber activity indicator. Viewed best with Default Theme, Nasa Night Launch Theme, Noia 2.0 Theme. You can simply click the toolbar icon to view the addon manager in a new tab or press the middle click to display it within a new window.

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