Liked the old version better. was much easier and it used to download both video and audio files when I click. can't find how to get it work this was again no matter how hard i try.

Best addon when it comes to downloading YouTube videos. However, it requires you to download external files to make it fully functional.

Cannot detect url_encoded_fmt_stream_map or adaptive_fmts.
Trying to download 3xbVuuxnJbg.
Hope You can fix it

It is the best of similar add-ons.

but

1. WebEx version does not allow [ . _ in filenames.
cf. [17_09.16] -> -17-09-16-

2. I use mkv as the combined file.
(ffmpeg -i %audio -i %video -acodec copy -vcodec copy %output.mkv)
WebEx version writes the filename extension twice.
cf. test.mkv.mkv

Why aren't the settings accessible through the firefox extension manager? Why only through clicking through the toolbar button?

Also, what is the correct format for 'ffmpeg path'?
To the executable? (yes, through trial & error)
To bin dir?
To overall ffmpeg dir?

What is the correct format for 'save merged files in'?
Quotes surrounding the dir or no? (no, more trial & error)
'\' at the end or no? (also no)
Why only 'merged files'? How can I set the save directory for all downloads?

'Consider OPUS' seems to fetch OPUS for MP4 grabs as-well even though the option makes it sound like it's for WEBM fetches only.

Where have the options to remove WEBM, OGG etc options from the download panel gone?

This add-on is much far better than other extensions.

what happened to the old one?

Bro i used to love your old add on and first add on i install this one is good but the conversion after downloading 1080 video and audio just ins't happening even after i install the requirement ,if you could fix this or if you give link to old add on that would be great.

Still impressive...
But now mp3 convertion has problem and automation used to be easier.
How add some buttons for FF not in the YT panel. Like download video, dl video AND audio, download just the mp3, because i usually use in two ways and just one default option isn't good for me.
Also, i can't teach to my granpa the difference between aac, opue ogg... i want to set some default value and the only choice for him should be mp3 or video. If granpa can use it, everyone can.