I am now using Firefox to download a big .ISO file. It seems that Firefox store the the partially download file in memory rather than disk. This file is over 4GB, but sadly my computer memory is only 4GB. I tried several times and the task finished every time when I downloaded 3.2GB of this file. I noticed that when the download task is almost finish, my computer memory is almost used up, and when the task finished, the memory usage suddenly drop down to normal, i.e. around 800MB. So I think this might be the lack of memory.
I tried to google this problem using keywords "Linux, Firefox, download, big file, out of memory", but I got little useful answer. I tried to download in windows, and there was no such problem.
So here is my question:
Is this some kind of Linux feature, or it is just Firefox feature. In other words, will I get the same problem when I use other download method like curl or wget?
How can I avoid this problem, do I need to change system settings or just Firefox settings?
It didn't prompt any error message when the task abort, so I don't know if there's any log I should provide. Please let me know if you need any information.
Thanks a lot!