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Tab Apps do not reopen when I reopen Firefox. - Gone!

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I just downloaded ff 4 to a vista 64 bit machine. I can create tabbed apps fine. The problem arises when I close ff and then reopen it. The tabbed apps are gone. I have to recreate them. Could not find anything like opt. to save them. Help.

Bill Regina

I just downloaded ff 4 to a vista 64 bit machine. I can create tabbed apps fine. The problem arises when I close ff and then reopen it. The tabbed apps are gone. I have to recreate them. Could not find anything like opt. to save them. Help. Bill Regina

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App tabs and Tab Groups (Panorama) are stored as part of the session data in the file sessionstore.js in the Firefox Profile Folder

Make sure that you do not use Delete browsing, search and download history on Firefox to clear the "Browsing History" if Firefox is closed because that prevails and prevents Firefox from opening tabs from the previous session.