How to check with Javascript if a Firefox 3 Add-on / Extension is installed

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故里飘歌
故里飘歌 2020-12-21 18:10

Actually this question is based on a Blog Entry, which discusses the topic for FF2. But how does this work with FireFox 3?

I know that there must be a workaround, be

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  •  甜味超标
    2020-12-21 18:52

    Please see this url. http://www.guyfromchennai.com/?p=104 This is worked for me

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