I just upgraded to FireFox 3 Beta 5 and immediately felt the loss of FireBug. Although FireFox can't automatically locate an update for it, FireBug 1.1 works in Beta 5 so grab it now!

Also feeling the loss of my del.icio.us bookmarks, HTML Validator extension, and Alexa rating graph, I googled for a possible solution and came across this useful tip:

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