I would like to switch to Firefox too, but it just lacks some of the most key features. It cannot effectively create large blob from chunks through the use of F

I would like to switch to Firefox too, but it just lacks some of the most key features. It cannot effectively create large blob from chunks through the use of Filesystem & FileWriter API. Yes, I can use IndexedDB for blob storage, but the time required to copy and paste chunks in/out of IndexedDB will grow exponentially for large blob. There is simply no other effective ways to build a large blob from chunks that can work in Firefox. This is why Firefox will always be slow on some modern web app. All other major browsers support Filesystem & FileWriter API: https://caniuse.com/#feat=filesystem https://caniuse.com/#feat=filesystem