It sometimes will not display menu to select items to download.
Sometimes it will keep adding items to download sue and either download 1000's of items or crash Firefox with loss of last session.
So backup/bookmark often. Not fun when Firefox runs in background slowing system down and that's Firefox not the add-on.
In the bright side... when advanced downloaded works it's awesome, saves lots of time.
Works well with video sites like YouTube, Xvideos and pornhub.
I use this add-on with Android but find it's true power on the PC.
***** Awesome code. Tool of the year, must have Add-on for all Firefox users.
*****More Features. Crawler, Spider, Preloaded, Bookmark/Log/History options.

I would like to see additional feature that can be activated by user settings based on site.
(This could add to much payload on some setups)
Option to preload/perfetch next page, (see:opera turbo)
Function:adp crawls current page for links. Loads pages in background, if video or images are found, adds them to list of selectable items for download/save.
Adp keeps history file of items downloaded in past as to not redownload same videos.
Adp option, crawl X number of pages.
Adp option to save all videos on page automatically.
Ecample: visit YouTube or PornHub, select/search Adp will find all linked/related content on page and save.
Example: Alluc.ee search TV show or Movie Adp will find links for entire season, user selects/confirm and Adp downloads to default location.
Would be ultra tool if this was added.

Additional option to save all Adp files to different directory, and option to auto create folder based on domain name link found and url.

Additional option: Adp creates log file of all items downloaded.

Additional item: Adp needs tweak to get download links from. Www.SearchFTPS.net please look when you have tume.
Fantastic code already done, Adp is best in class, I have tested them time.
Thank you for keeping this free.
FIBER0PTUC/FBR, The HUMBLE Guys, Napalm and Worship Inc.