So, It's a very good extension and it does what it needs to do. The only thing that is a bit painful is that it requires a bit of setup to do, particularly if you have the portable version of uGet. But overall once it's all setup it works very well.

Interruption is quirky (at least on Linux). Sometimes FF starts the download then it gets paused while uget interrupts and ff is stuck on paused.

Sometimes it doesn't pause, and it ends up being downloaded by both programs.

Otherwise, great. Still going to continue using it.

Great program and extension, but this doesn't seem to start up aria2 if uGet is opened from this extension, meaning I have to have already had it open or exit and restart uGet to download using aria2 on Windows.

Thanks for the add on. Users have to install uget-integrator(https://github.com/ugetdm/uget-integrator/wiki/Installation) first.

Easy to batch download many files, just right click and select from the context menu. Queues the files and downloads them painlessly.

Does what it says, supposed you take the minimal hassle to *install the wrapper first*! Preferences are slightly unintuitive: haven't found out how to start DLs automatically yet.
Features (proxy, scheduler, limits, filters) are very reasonable and useful.

It just work for who only use uget as their download managers.

Firefox 54.0.1 Desktop