Communication of browser to server

Hello guys,
I need some addon for FF or Chromee to can see communication with serwer.
What my browser send and what get from asnwer.
Long time ago I remember had somethinh like combinations of my keyboard on my FF and saw whats happen by my browser.
Thanks for advance.
Cheers

You don't need any addon at all. On Firefox there is Tools > Browser Tools > Web Developer Tools (Ctrl+Shift+I). On Chrome, More tools > Developer tools (Ctrl+Shift+I).

TomTheCat said:

You don't need any addon at all. On Firefox there is Tools > Browser Tools > Web Developer Tools (Ctrl+Shift+I). On Chrome, More tools > Developer tools (Ctrl+Shift+I).

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@TomTheCat big thanks. One more question. Is server can "steal" my GPS position from browser without my accept to be visible my position ? Is it possible ?

mayllopl said:

@TomTheCat big thanks. One more question. Is server can "steal" my GPS position from browser without my accept to be visible my position ? Is it possible ?

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No and yes. 99% it won't, but depending on your ISP, geolocation data is sent in headers.

@TomTheCat thanks for answer. I know about ISP geo. But I mean about goelocation with my Geo possition, is it possible to server see without my accept on browser. And please look this, how is it possible. Page give message in cooies accpet that will be take my location. How is possible that they take my location even from few meters by cookies if I have blocked sending location on my browser. If I not accept their cookies they still will be can see my location ? Or if I reject cookies not will be possible see my possition ?

There are some apps, browsers, phones, carriers, that send custom HTTP headers. There is the geolocation data (latitude, longitude), even if you disabled all cookies (not related) and you did not give accept for geolocation in browser.