Yesterday almost all of my useful Google Chrome Extensions disappeared. I went to chrome://extensions and there was a repair button below the disappeared ones, like this. I googled a lot and from what appeared to had solved the problem in some cases I went to Google Dashboard and click on Reset Sync button at the bottom of the page, then completely uninstalled Chrome and reinstalled it to see if there's any change. But after installing every extension from Store again today my extensions just disappeared with clicking on them or closing Chrome compelely. But if chrome is running in background (chrome Tray-Icon is visible), then extensions don't disappear. But that means if I shutdown, or restart extension gonna disappear.
I Also sync everything in advanced sync settings. Any suggestions?