Accelerator Plus Dap Extension Google Chrome
Dec 06, 2010 dap extension for Google chrome!! INSTALAR E ATIVAR O DAP PLUS 10 (2018). How To Install and Remove Google Chrome Extensions.
Jun 14, 2012 The DAP Extension for Google Chrome allows you to use DAP to accelerate your file downloads while using the Chrome browser.Download Accelerator Plus (DAP. Download Accelerator Plus (DAP) extension for google chrome browser.

I use Free Download Manager - It can be installed or downloaded as a portable application & has support for torrent files too. I've been using it for as long as I can remember. Once open, it puts a small box-like icon at the bottom corner of your screen and you simply drag download links to this box and FDM's 'Add new download' window pops up. Contrary to what Mike says up here, I do find that when downloading files with FDM, they do in fact download faster than when simply using either FF's or Chrome's native download manager. Dunno why, but that's what it seems like to me! Anyways, hope my 2 cents helps.
I didn't mean to imply that they don't help in general. They might speed things up in several situations for example when files are hosted on CDN and the direct link is available. In this situation they are able to use multiple mirrors and change to a faster one for the remaining parts of the download. For me I mostly end up on authentication based Amazon S3, other CDN with temporary download links or full speed servers where my bandwidth already is at max. This is why I stopped using DAP years ago. Chrome only got a normal Download Manager (the Download window, like FireFox).
Maybe look into the Chrome Webstore. There are a lot of download related Extensions and Apps available. Micrografx Designer Viewer.
But looking at todays web I don't think Download Accelerators are that useful anymore. First of all most servers already offer a great deal of bandwidth ~ enough to utilize yours. Then, most of the time you click a download link you are forwarded to some sort of download script. Unless this script forwards the direct link to the file the manager won't be able to open parallel connections to it. Also with all the session cookies and links chances are high that a download link isn't valid anymore once you opened it, therefor preventing the download accelerator from doing it's work.