I keep getting nagged to rate this extension, so here it is, my 1-star rating. Perhaps now I won't be nagged.

Давно перестало работать, удаляю. Россия, ростелеком.

Pretty good if not for one annoying shady thing.
It randomly turns itself on and starts draining free data. You get 2gb per month.
I only notice it happening when watching youtube and little language icon next to "youtube" changes to something else.
"Oh it seems you ran out of free data, how about upgrade plan and get more data per month."
Don't like that at all. I barely need this, drain maybe 20mb per month of data out of 2gb and it randomly does this?

Have faced no issues so far and the widget is very intuitive to use.

a little confusing at first but not bad once you get used to it