@tyil please, read the responses already provided.
I use Chrome, so I start with Chrome.
about the "don't share with mega corpo", read again the post:
«Once this initial testing is done we'll make it public and publish the extension in the store.»
it's not private to "not share blah blah", it's just during this testing where I do a lot of random changes and tests on my own and the extension is not being packed for the store.
Before "attacking", read.