Instructors often post many files in folders in their Blackboard courses. For students, the usual way of downloading these files is by clicking the links one at a time. To speed up this process, there is a plug-in for the Firefox browser called "DownThemAll!" that will go through all the links on a page, let you check the ones you want, and download all of them at once.
This plugin works well with Blackboard.
Using your Firefox browser, get the plug-in here:
-> https://addons.mozilla.org/en-US/firefox/addon/201
Here is a picture of "DownThemAll!" in use:
Note: For the Blackboard site, we recommend setting DownThemAll to download each file sequentially. Do to so, in Firefox, go to Tools > DownThemAll > Preferences and set "Max contemporary downloads" to 1. (Thanks to Colin for this tip)
For more instructions on how to use "DownThemAll!" see the developer's website here:
http://www.downthemall.net/howto/features