Quite useful. But it desperately need an option to remember temporarily. Like another checkbox inside the one that already exists to instead of remembering forever, remember for X minutes or remember for the current tab and domain.

This is so much nicer than the tiny alert pop-up at the bottom of FF that quickly disappears. I would have given it a 5+, but for me, it opens two tabs, rather than one. The first is about:blank and the second is the confirmation dialog. Two suggestions: 1) add a link to the confirmation dialog to open about:downloads to allow a user to view and delete downloads; 2) Allow the user to change FF download location from internal to the external sdcard. I manually did this by adding browser.download.dir and pointing FF to the dir on the sdcard. This is a MUST HAVE addon for FF for Android. I am so happy I found it.