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Extensions are enabled in add-on manager but do not appear on FF4 On a Macbook Pro. Norton Safety Minder, Forecastfox Weather, Invisible Hand. All are enabled but none display. Is this a known issue. What to do?

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Installed v4 today. (22 Mar 2011) Does not appear to be an RC. Had been using v 3.6.15 and these items appeared to work fine. Are they erroneously shown as compatible until updates are made? Who needs to make update, FF or extension source?

Installed v4 today. (22 Mar 2011) Does not appear to be an RC. Had been using v 3.6.15 and these items appeared to work fine. Are they erroneously shown as compatible until updates are made? Who needs to make update, FF or extension source?

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I doubt if that Norton extension is compatible, Symantec usually takes a month or so before their extensions are compatible with a new Firefox release version.