[Bug]: fenix doesn't download properly

[ghajini]

Steps to reproduce

URL's to visit=

https://southmp3.org/kanchana/
http://dailyhowtos.com/Latest/Alt/reldriveAlt.php?minify=R&line=08&file=Survivor_Series_2001_SHD
https://asianembed.io/download?id=MzEzNDc3&title=Wang+Pai+Xiao+Cao+%282022%29+episode+9&typesub=SUB&mip=0.0.0.0&refer=none&op=1

click on legitimate download buttons

Expected behaviour

download begins with correct file names & valid file types such as with above sites, download starts as

Survivor_Series_2001_SHD.mp4
Jackson - SenSongsmp3.Co.mp3
EP.9.v1.1650031808.360p.mp4

Actual behaviour

fenix downloads them as file names such as

mp4
mp3

so no media player able to play the videos

Device name

moto g40 fusion

Android version

Android 11

Firefox release type

Firefox Nightly

Firefox version

101.0a1

Device logs

No response

Additional information

i feel the bug is related to fenix as the same files can be downloaded perfectly using google chrome android, firefox desktop browser ruling out website bug

┆Issue is synchronized with this Jira Task

[sv-amocirean]

Hello @ghajini , thank you for submitting the issue. I was able to reproduce it on the latest RC, Nightly or Beta.

Device Used: Huawei P40 Lite Android Version: 10

[jonalmeida]

This is an AC bug, so I'd like to move it there instead of filing a separate issue that links to this one.

[csadilek]

Moved to bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1792926

Change performed by the Move to Bugzilla add-on.