Accidentally found this. When I searched for "Download Status Bar" (my old FF extension pre Quantum) it didn't show up.
Not all settings working properly for me, but still very good.

功能很全，但有点丑😂
It's very good, but a bit old school

Unclear how this is supposed to work. I expect it to automatically take over any download, but Firefox still uses the default method. Also, is this actually a download accelerator?

I know the dev is responsive so hope he/she can help me get this to work as expected. Thanks.

not working in firefox (ubuntu 22.04). can install but can't do anything.

The download sound doesn't play when download finishes. All music, game audios, and other system sounds play normally, only Download Manager (S3) will not play. Using the default sound (Checkmark), and the option is checked. The add-on also does not delete download files, then the folder containing them is opened, even though that option is checked. As such, this add-on is no better than the default Firefox download, and so there is no good reason to use it.

Excelente