My firefox collapsed a couple of times (I don't blame it my browsing contained around 40 tabs XD). However, when I restarted the browser all of my addons went missing also I cannot add any new addons tried the ones recommended by the browser. I also tried to update the browser and all the troubleshooting options I could find. The issue is not detected by any troubleshooting I tried. So please help me restore somehow my addons or at least make me able to install addons at all. Thanks