I have recently upgraded to Firefox 13 beta 4 version and suddenly found out that my Add-ons are not compatible with this newer version of Mozilla Firefox. I am unable to understand this why it is so. All my Add-ons were working fine with my earlier versions but I don’t know what the problem is now. I thought it is just because I installed the beta version wrongly so I uninstalled it and again reinstalled but nothing seems to work the Add-ons are still incompatible. Does anybody have any idea in regards of this I want to sort it out as soon as possible? It’s just bugging me. Need help.