Wow wow wow, what's happening from few months with your addon?
At each start of Firefox this addon is downloading AND uploading an insane amount of datas, making Firefox unusable for 1 or 2 minutes before it finishes its download/upload.

I just disabled it and for few days now no more download and upload on my internet speedometer when i start FF.

What were you siphoning from me?
I Removed your addon, and no more hidden connexion!