how to add a toolbar icon to firefox with firefox Add-on sdk

Question

Just as the title says,the official course mentions WindowTracker,it may help

score 1 · Accepted Answer · answered Mar 13 '12 at 13:16

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You use the widget package. The very first example in the documentation already shows how you would use an icon as your widget.

answered Mar 13 '12 at 13:16

Wladimir Palant

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I used the widget and the icon showed on the addon bar,not on the status bar which is just next to address bar.Thank you for help. – ly gu Mar 13 '12 at 15:37
@lygu: There is no status bar starting with Firefox 4 - it was "merged" into the add-on bar and that's where extensions should be adding their icons. What you mean is a toolbar. See [Using JetPack to add toolbar buttons](http://stackoverflow.com/questions/7670282/using-jetpack-to-add-toolbar-buttons-integrating-xul-and-jetpack-for-firefox-ad) for an earlier question on this. – Wladimir Palant Mar 13 '12 at 19:14
Thank you for help.It seems useful,but I don't know how to use it.I found this question,the answer gave a example,but it didn't work,the error information is "File "resource://jid1-izmxbb0vyfj9ma-at-jetpack-api-utils-lib/window-utils.js", line 76, in WindowTracker this.delegate = delegate;TypeError: this.delegate is not extensible",how to solve it?Thanks – ly gu Mar 14 '12 at 13:28

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