Hello,
It works by pressing middle mouse button and dragging mouse up/down.
Note that it won't work HERE, on this addons store page (as a security measure, all addons are blocked here).
It's best to test the scrolling in the Options page.
Best Regards,
Juraj Mäsiar

Hello,
Make sure to test it on some other pages since all addons are forbidden from running HERE (addons.mozilla.org).
You can test your scrolling options in the Options page of the addon.
Best Regards,
Juraj Mäsiar

Hello,
My extension adds many scrolling options (for example grab and drag), see "Scroll style" in the Options page.
Best Regards,
Juraj Mäsiar

Hello,
It depends on the point of view :), I can see the source code just fine.
Seriously now, I've spend countless hours implementing this addon (and many other addons) and it's completely free.
Is that not enough?
Imagine if you did something free for others and people would still complain. It's discouraging.
Note that Mozilla reviewers can also see the original source code (for all of my addons) so they are safe to use.
Best Regards,
Juraj Mäsiar

Hello,
See the Options page to set a scroll button you want to use.
Also, the addons won't work here - on the mozilla addons page, so try it on any other page.
Best Regards,
Juraj Mäsiar

Hello,
Thank you for the feedback!
It was an experiment a long time ago. I was thinking that "some" translation is better than none. But I guess it can be actually pretty terrible.
It will be removed (with all other crappy translations) in the next release 9.3, not sure when exactly, I have so many things to do these days... I'll try to release it some weekend.

Best regards,
Juraj Mäsiar

Hello,
Could you please contact me to my support email and describe the problem more?
Please send me the exact links where I will be able to reproduce it. Also, please include your settings (either export it from Options page or just write me what scrolling button are you using).
Best regards,
Juraj Mäsiar

Hello,
Yes I'm sorry, the Android support is not yet done.
I'm planning to finish basic version for Android till the end of this year (wish me luck :)).

Have a nice day :)

Best regards,

Juraj Mäsiar