Firefox for Android browser is very good, but its download manager is not proper, because when downloading large files, if the internet speed slows down or the network disconnects, the download fails and you have to download again. Also, if a link expires, you have to download again. Please make its download manager like ADM or IDM download manager, so that even if the link expires, it can update the link and resume the download from where it stopped, without having to start over. Thank you.