Resume A Failed Chrome Download From Where It Left Off [Tutorial]

The great thing about this method is that even if Chrome crashed, your system was forced to shut down, or you manually exited Chrome, the download can still be resumed.
Step 1: Locate the failed download
Downloads that failed leave a residual file in the downloads folder (or wherever it was you were saving that file to). That file has the extension CRDOWNLOAD which stands for a Chrome download. Once download has failed, find this residual file. To see what the file is named, open the downloads folder in Chrome (Ctrl+J) and look at the failed download file’s name. For the sake of this tutorial, we will call it My_Files.crdownload.

 

Step 2: Copy Download Link
Copy the download link from the downloads page in Chrome. Right-click it and select the ‘copy link address’ option. You can now exit Chrome if you want. Leaving it running will have make no difference.
Step 3: Initiate Download In Firefox
Paste the link in Firefox and allow it to begin the download. Once the download has started, pause it. Right-click the file in the download progress window and select Pause.

Step 4: Find the paused Firefox download

Open the location where Firefox was downloading the file and check out the name. It may be saving with a different name than Chrome was. Ignore the extension at this point and simply copy the name of the file. Let’s say Firefox was downloading it with the name Myfiles.part. Copy the ‘Myfiles’ part.
Step 5: Rename failed Download
Go to the failed download file you located in Step 1 ‘My_Files.crdownload’ and rename it according to the name you copied in Step 4, ‘Myfiles.crdownload’. Change the file’s extension from CRDOWNLOAD to PART, so that your file name is now ‘Myfiles.part’. Windows will prompt you that the change may result in a corrupt file but don’t worry and go ahead with it.

Step 6: Replace the paused file
Return to where Firefox was downloading the file in question and delete it. Copy the file that you just renamed to ‘Myfiles.part’ to this location.
Step 7: Resume download
In Firefox, right-click the paused file in the download progress window and resume it. Instead of downloading fresh, Firefox will resume download from where Chrome left off.
What’s going on?
When a download in Chrome fails, it doesn’t delete the file. It leaves behind whatever files were downloaded but in the Chrome Download format. Chrome itself cannot resume this file because its download manager doesn’t support it. Firefox on the other hand can handle it just fine, provided the name and extension are correct.
When you start and pause the download in Firefox, the browser creates its own download file like Chrome did. the difference is that Chrome’s file is a lot bigger because  it had downloaded more before the download failed. What you essentially do is rename the Chrome failed download to a file and format that Firefox has already recognized and initiated a download for. When the download is resumed, Firefox will pick up where Chrome left off saving you lots of time and some bandwidth.

Source: http://www.addictivetips.com