Clear the Cache Data
It’s not only the browser that generates cache files or temp files; your Android applications also create cache data over the time. The apps’ cache data consists of your accounts’ profile picture, account details, downloaded items from the specific app, etc. It is totally safe to wipe out the apps’ cache data. Go to Settings> Applications> tap on any downloaded app to see the storage space they have occupied and tap on the Clear Cache to clean the cache data. It really gives you a sigh of relief from the insufficient storage available error.