How can i restart a download where it left off? I already wasted a day downloading most of a file.?

Question

I am trying to download a very large file off of the internet but i am having many issues. I got to about 70% done (which took about a day) and accidentally closed the window which canceled my download. Then, i tried again using a download manager (FDM - Free Download Manager) and waited another day and a half for it to finish and it turns out it didn't actually download the entire file, making the other 1800mbs useless.

How can i resume a download without having to start from the very beginning? I already have most of the file on my computer.

I use Firefox.

Answer 1

Well, if the place you download it from doesn't support resumed downloads, you can't unfortunately.

Answer 2

The latest version of Firefox supports download resuming even if you accidentally close the download process or shut down Firefox.

Though there is one condition: the URL from which you download should be the same before shutting down Firefox and after restarting Firefox. If the source URL changes, the download resuming will fail.